YACK

Something or someone who is disgusting or nasty.

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

by iam2nocnt November 30, 2009

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?

by Pappy Mason September 11, 2006

cat yack

a cool name for a punk band.

We're going to see cat yack tonight. They fuckin rule

by venge April 9, 2003

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."

by T-Viz February 8, 2009

yack

to take someone deep in baseball

I went yack off that guy last game.

by Brandon Ti July 7, 2007

Yucky Yogurt

Male Ejaculate. Cum, basically. Like... from a dude

Sorry about the Yucky Yogurt shower

by eggman789 November 8, 2007

yackadoo

"Yackadoo" is the term Ms. Daniels from IS 204 used to describe her students who wouldnt shutup; her students are "yackadoos".

"This yackadoo in my class wouldnt shutup when we were supposed to be doing our work."

by Yakky November 14, 2004