A type of music that combines elements of punk, hardcore, rocksteady, and ska. Very fast and usually singers scream for a more hardcore sound. Punk parts can change to ska and back quickly.
Example bands:
Leftover Crack
Choking Victim
Morning Glory
Antimaniax
Union Jack
No Ca$h
The Filaments
An insult usually directed at an apple enthusiast which is a reference to the fact that mac books are sold to drug dealers in order to obtain drugs like crack.