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.

Yack Yack by Grieb Minzadian April 9, 2010

Tac-Yack 

A Tac-Yack (Tactical Yack) is the act of expelling alcohol or food from the body via the mouth for tactical reasons. Such tactical reasons may include but are not limited to:
1. During Boat Races where you do not wish to get too drunk too quickly in order to win subsequent boat races.
2. During an all-you-can-eat buffet where you realize that you have eaten too much of the appetizers and cannot eat the delicious main course meals unless you empty your stomach.

Fred tac-yacked all over the floor of his ex-girlfriend's car. He then proceeded to break into her house and steal all of her jewelry.

Tac-Yack by Ajax2411 April 27, 2011

Yack Charelles 

The most awesome person ever alive. This is dedicated to Henry, who made Yack Charelles up. He is Hack Charelles.

That guy is so cool. He is probably related to Yack Charelles.

Yack Charelles by Lamsndn December 15, 2019

Brainiac yack 

talk that's pompous and attempting to appear intelligent.

Everything that professor says is brainiac yack.

Brainiac yack by LaLaLander17 February 9, 2009

yumbo yack 

a "jumbo jack" from "Jack In The Box",but most mexicans say "yumbo yack"

Can i get a "yumbo yack" and a shake.

yumbo yack by wyld lyle October 24, 2008

yack

to throw up, usually after drinking

I drank too much tonight, I just yacked behind his shed

yack by Vick May 13, 2005

cat yack 

A popular breakfast food item, especially in the southern U.S. Technically known as "Sausage Gravy and Biscuits." Someone who doesn't appreciate the finer things probably decided that it looked like something the "cat yacked-up" on a plate.

"I'm so hungry I could eat the north end out of a southbound skunk! Bring me full order of cat yack and a cuppa joe."

cat yack by Gumby March 31, 2003