an odd, irrational, or unconventional person; wacko.
a thing or things that are unsatisfactory, worthless, or of low quality: The show is mostly a lot of wack, with a couple of funny moments.
extremely bad or inferior: The song is great, but the video is really wack.
odd, irrational, or unconventional; wacky: I’m afraid the neighbors think we’re wack!
extremely good: The guys scarfed down those wack cookies you made, and they're asking for more.
- Also whack [wak, hwak] /wæk, ʰwæk/ .
Other definitions for wack (2 of 2)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
British Dictionary definitions for wack
Liverpool and Midland English dialect friend; pal: used chiefly as a term of address
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