1. Something is cool or interesting. Often associated with a negative connotation, it has seen a surge with more positive associations.
Teacher: This concept is very important for the fundamentals of algebra.

Student: Wack.
by AVeryWittyName March 10, 2019
Get a Wack mug for your sister-in-law Larisa.
Am acronym for winter track. Typically played indoors.
I have WACK practice after school. Ugh gotta love winter track. There is snow on the ground but we still run.
by Suburbanchick January 10, 2018
Get a WACK mug for your bunkmate Paul.
wack is like crazy but it can also mean weird or unbelievable(in a bad way).
"bro john dyed his hair purple"
"thats wack"
"nope im being fr"

"johns project is wack"
"lmao yeah"
by wacKosix9 October 14, 2019
Get the wack neck gaiter and mug.
when something or someone is crazy. is crazy
"Yal are so wack!"
"Wiggidy wack!?"
"No, just regular type"
by fran xox August 09, 2004
Get a wack mug for your girlfriend Riley.
in some places means not going too lessons or just not going to school. Can also be spelt - waked, wacking it, wacked, wakked
1) you wacking it today?
2) deffinatley i hate math

1)i wacked biology yesterday im in shit!
by you'llneverknow__x July 15, 2008
Get the wacked neck gaiter and mug.