- odd or irrational; crazy: They had some wacky plan for selling more books.
Origin of wacky
Examples from the Web for wacky
Washington, a truly masterful storyteller, grew up in what he calls “a wacky cult”—the Worldwide Church of God.NPR’s Smooth-Talking Millennial Whisperer
October 7, 2014
The actor showed tremendous range in the role, bouncing between his wacky stand-up persona and gentler dramatic work.Robin Williams's Greatest Moments on Stage and Screen (Video)
The Daily Beast Video
August 12, 2014
The onus is on one man to hold this wacky goulash of punditry together: Mike Tirico.
The man who holds ABC/ESPN's wacky goulash of World Cup punditry together strikes viewers as a paragon of congeniality.
The two wacky candidates combined for just over 5% of the vote with Brown pulling 3.3% and Bayes at 1.8%.Who Voted For Idaho's Weirdo Candidates For Governor?
May 21, 2014
- slang eccentric, erratic, or unpredictable
Word Origin and History for wacky
"crazy, eccentric," 1935, variant of whacky (n.) "fool," late 1800s British slang, probably ultimately from whack "a blow, stroke," from the notion of being whacked on the head one too many times.