dem WACK!
a plural phrase implying that a group of things/people/places or a plural noun is cool, awesome, etc.
PLURAL-
Jasmine: What was your opinion on those hot mix tapes?
Billy: dem WACK!
Jasmine: The Mets played a great game tonight.
Billy: Yeah, dem totally WACK!
Jasmine: What was your opinion on those hot mix tapes?
Billy: dem WACK!
Jasmine: The Mets played a great game tonight.
Billy: Yeah, dem totally WACK!