When shit starts expanding in your intestines before it is ready to come out. The step right before prairie-dogging and two steps before the loaf is ready to be taken out of the oven.
Oh shit I'm yeasting! I need to find a bathroom pretty soon.
by Soonerspic August 22, 2008
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A fungus that bakers use to make their bread rise.

A fungus that infects womens' vaginas, causing them to produce a cottage cheese-like substance.
The bakery was unable to produce enough bread because of a shortage of baker's yeast.

I ain't gonna fuck my girl coz she's got a yeast infection.
by shdaf09ewrwe February 18, 2003
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small, single-celled fungi of the phylum Ascomycota that reproduce by fission and are capable of fermenting carbohydrates into alcohol and carbon dioxide (Webster's).
I baked the bread and waited for the yeast to rise.
How does not using toilet paper make you a slut?
by red dragon July 18, 2003
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Money rising / Swollen cash / getting your money game up: Comes from the word yeast; a substance used in raising dough

"Yo this guy is YEASTING!"
"2011 is gona be my year fam, straight up YEASTING"
"Man's YEEEASTING fam"

Slang originated by Phillyatchi.
Yeasting money cash dough cheddar ballin flossin paper loot
by Phillyatchi December 23, 2010
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A mashup of Yee, Yeet and Yes. It's better than all three of those listed.

It can also be used as a start to a conversation, or said when nothing else is thought of.
"Hey Billy"
by Super Thicc Succ October 7, 2017
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An emphatic word that can be used as an insult or an adjective.
-You stupid yeast!

-That person sure was yeasty.
by BRINBE August 6, 2004
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