yack

The puddle left after a vile gut wrenching vomit session.

Joe was really sick and yacked all over the floor.

by Joe March 1, 2005

yack

to steal

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

by sammy rude August 18, 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 12, 2006

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 9, 2009

yack

to take someone deep in baseball

I went yack off that guy last game.

by Brandon Ti June 12, 2007

yack

To throw. Used in Leicester, UK.

Yack the ball over here.

by James, James, James August 25, 2006

Yack Yack

If you throw up Jack Daniels in a Spanish speaking country. In English you would Yack Jack, however Spanish people pronounce words starting with J as Y, hens Yack Yack.

(Dude throwing up Jack Daniels in Cancun when a local is around and sees)

Dudes Friend: Where did my buddy go?

Mexican Local: Oh, he Yack Yack Senior.

by Grieb Minzadian April 4, 2010