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Synonyms

bats

American  
[bats] / bæts /

adjective

Slang.
  1. insane; crazy.

    He's gone bats.


bats British  
/ bæts /

adjective

  1. informal crazy; very eccentric

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of bats

First recorded in 1915–20; see origin at bat 2, -s 3

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:

Other types of bats found included brown long-eared, noctule and Leisler's.

From BBC Sep. 5, 2026

It said "loss of or disturbance" to roosts, external in trees on the grounds, which provide shelter for bats, would result in "adverse effects" on the local populations of two common and widespread species.

From BBC Sep. 5, 2026

Less than 1% of bats in nature are infected with rabies, according to the National Park Service.

From Los Angeles Times Sep. 4, 2026

“And obviously it’s a young, hungry team out there. Came out last night swinging the bats, so it’d be nice to put up a zero, get a lead, and go from there.”

From Los Angeles Times Sep. 3, 2026

We used to get bats in the trailer.

From "Missing May" by Cynthia Rylant

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