flip-flop
Americannoun
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flip-flops
plural
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Informal. a sudden or unexpected reversal, as of direction, belief, attitude, or policy.
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a backward somersault.
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Also called flip-flop circuit. Electronics. an electronic circuit having two stable conditions, each one corresponding to one of two alternative input signals.
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any of several similar devices having two alternative states, the change of state being caused by some input signal or by some change of input.
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the sound and motion of something flapping, as a windblown shutter; a banging to and fro.
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any backless, usually open-toed flat shoe or slipper.
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a flat, backless rubber sandal, usually secured on the foot by a thong between the first two toes, as for use at a beach, swimming pool, etc.
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(in advertising) a display or presentation, usually on an easel, consisting of a series of pages hinged at the top and flipped over in sequence.
adverb
verb (used without object)
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flip-flops,
present (3rd person singular)
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flip-flopped,
past participle, past
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flip-flopping
present participle
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Informal. to make a sudden or unexpected reversal, as of direction, belief, attitude, or policy.
The opposition claimed that the president had flip-flopped on certain issues.
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to execute a backward somersault.
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to flap; bang to and fro.
The door flip-flopped in the high wind.
noun
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a backward handspring
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Also called: bistable. an electronic device or circuit that can assume either of two stable states by the application of a suitable pulse
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informal a complete change of opinion, policy, etc
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a repeated flapping or banging noise
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Also called (US, Canadian, Austral, and NZ): thong. a rubber-soled sandal attached to the foot by a thong between the big toe and the next toe
verb
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informal to make a complete change of opinion, policy, etc
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to move with repeated flaps
adverb
Other Word Forms
Inflected Forms
Nouns
Participles
Conjugated Forms
Present
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flip-flopsimple
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flip-flopssimple
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have flip-floppedperfect
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has flip-floppedperfect
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am flip-floppingprogressive
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are flip-floppingprogressive
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is flip-floppingprogressive
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have been flip-floppingperfect progressive
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has been flip-floppingperfect progressive
Past
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flip-floppedsimple
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had flip-floppedperfect
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was flip-floppingprogressive
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were flip-floppingprogressive
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had been flip-floppingperfect progressive
Future
Etymology
Origin of flip-flop
First recorded in 1655–65
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
Baidoo suggests a more supportive flip-flop, such as a FitFlop, which is sturdier and contoured - a world away from the flat and thin flip-flops that have been cut from a big sheet of foam.
From BBC ● Aug. 4, 2026
“It almost feels like we’re not being taken seriously as human beings with needs. Like, we’re just being taken through this crazy obstacle course where they have all these rules that flip-flop on us.”
From Los Angeles Times ● Aug. 4, 2026
“The flip-flop developments in US-China tariffs war have added volatility to the market, further fueling trading activity.”
From The Wall Street Journal ● Nov. 5, 2025
Overall, this might look like a wild flip-flop: A popular and widely sold supplement with some science behind it just doesn’t seem to work.
From Slate ● Jun. 20, 2025
A print of a bare foot alternating with the flat print of a flip-flop.
From "Bone Gap" by Laura Ruby
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Throughout the 13-track record, she flip-flops between being vulnerable and playful while also being hedonistic and making sacrifices.
From Los Angeles Times ● Sep. 21, 2026
That one guy who lives ’round the corner who has three pet ferrets and wears flip-flops all year long.
From Slate ● Aug. 12, 2026
Baidoo suggests a more supportive flip-flop, such as a FitFlop, which is sturdier and contoured - a world away from the flat and thin flip-flops that have been cut from a big sheet of foam.
From BBC ● Aug. 4, 2026
Yet the images of ebullient arrivals to Spain, a portion of them minors and some wearing only swimsuits and flip-flops, have already spread far and wide, threatening a rupture in relations with Rabat.
From Barron's ● Jul. 31, 2026
Biting back my tears, I put on my flip-flops and walk toward Keav’s extended hand.
From "First They Killed My Father: A Daughter of Cambodia Remembers" by Loung Ung
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But, thanks to the pandemic, demand for aircraft seats has flip-flopped dramatically of late.
From BBC ● Sep. 5, 2024
If Roberts flip-flopped Freeman and Smith, the Dodgers would go right-left-right-left-right in the first five spots, with Teoscar Hernández batting fifth.
From Los Angeles Times ● Jun. 2, 2024
But just a few weeks ago he flip-flopped, telling New York’s City & State that he was working on a documentary and a reality TV show, and therefore uninterested in engaging in a “messy primary.”
From Slate ● Mar. 13, 2024
Since the report’s release, the Portuguese hierarchy has flip-flopped over the possible – and still unresolved — issue of payment of reparations to victims.
From Seattle Times ● Jul. 26, 2023
I stood there in my half muddy, flip-flopped feet, with my hair sticking out from under my baseball cap, and clutched her right back.
From Each Little Bird That Sings by Deborah Wiles
His flip-flopping between military employment and diplomatic interruptions caused our superior military advantage to wither.
From The Wall Street Journal ● Sep. 23, 2026
Much like constantly changing an opening pair does little for the team's output of runs, flip-flopping on rules around behaviour does not create a winning environment.
From BBC ● Aug. 13, 2026
"We lost a lot of public trust because of some of the flip-flopping advice."
From Salon ● Dec. 29, 2024
Jessica Hoff Berzac, president of UPholdings, which developed the project in partnership with Self-Help Enterprises, said she has been frustrated by the flip-flopping by officials, who initially supported the plans.
From Los Angeles Times ● Nov. 20, 2024
If only we hadn’t seen kids going down there with towels around their necks and thongs flip-flopping on their feet.
From "It All Comes Down to This" by Karen English
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.