adjective
wack
WAK
adjective
1
Bad or lame in an annoying, disappointing way; uncool, corny, or messed up.
"That excuse is wack — nobody's buying it."
"The new update made the app slower, which is just wack."
noun
1
An eccentric or odd person.
"He's a bit of a wack, but he means well."
How to Use Wack
Learner’s notesIn plain EnglishSlang for something (or someone) that's bad, lame, or just not right.
When to use it
Informal slang, common in casual speech and hip-hop culture; avoid in formal writing.
Easily confused with
Common pairings
that's wack
wack idea
so wack
Word Forms
wacker comparative, wacks plural, wacks plural, Wacks plural, wackest superlative
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That excuse is _____ — nobody's buying it.
Etymology
A back-formation from "wacky", shortened to describe something disappointingly bad or corny.