The act of throwing up and pooping in the same hole (usually a toilet) at the same time.
"How was your night, man? I only saw you at the party for a bit."
"Dude, it was great. I had my first front-back yack. It all landed in the toilet too; none on my clothes."
"Dang, that's pretty impressive."
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the act of puking your brains out after drinking heavily, then come back and start drinking all over again with a empty stomach.
Its best to yack and come back if:
-your drinking all day,
-then go to a chinese buffet.
this is what should follow that:
-then go to the parking lot,
-stick your fingers down your throat
-puke
-then go back inside and eat and drink again
2๐ 9๐
1. When a male is t-bagging a woman and before he ejaculates turns and shits on her face.
2. Also may be used as a way to express anger.
1. "Hey Bill last night Linda let me do shit-cock-yack balls, and it was fantastic."
2. "Shit-cock-yack-balls! I died in Call of Duty again."
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An extremely insane ejaculation
โHey bro! Why are you so sleepy today?โ
โYeah bro sorry, I yacked one out last nightโ.
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When ur sippin it proper wiv a bottle of glens vodders
What you sippin on tonight g?
Yack in my cup das glens
Also Twack yacking When enough amphetamine or other stimulant causes endless hours of random subjects discussed with lack relevance
One of the best parts of getting to know someone is a good twack Yack to figure things out.
A high school version of Mac and cheese
Teacher: Mac and Cheese for lunch
Student: You mean Yack and sneeze
Teacher: Sure