yack

to steal

"how are we gonna get that alcohol man?"
"we'll just yack it"

YACK

Something or someone who is disgusting or nasty.

Throwing up is YACK! or This coffee taste YACK or She is YACK.

yack

Thats when you get the piss smacked out of you.

You gonna keep it up till I yack you in the mouth aint you?

yack

To slam dunk a basketball

Examples:
"Damn, He just yacked it on that little white boy."

"If I was taller I would be able to yack it on a 10 foot hoop."

yack

to take someone deep in baseball

I went yack off that guy last game.

yack

To throw. Used in Leicester, UK.

Yack the ball over here.

Yacking it

Taking a shit in the bathroom

My brother was in there yacking it last night