Top definition
The rotten bit at the end of a joint that no one wants to smoke but someone always will.
PADDY: Here pass that joint there
DAVE: its just the gak mate. you still want it?
PADDY: Yeah fuck it.
PADDY: awwwww i hate the fuckin gak!
by madtie2 September 30, 2009
Get the mug
Get a The Gak mug for your brother Vivek.