meaning awesome or cool! used in place of the word "beast" because that words way too over used
-did you see that one hunderd and five percent i got on the test?!

-heck yeah! you're such a yeast!
by lexay5394 October 25, 2011
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 17, 2003
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 17, 2003
An emphatic word that can be used as an insult or an adjective.
-You stupid yeast!

-That person sure was yeasty.
by BRINBE August 05, 2004
1. Something/someone very big or fat.
2. feeling of extreme laziness.
1. Look at that girl, what a yeast.
2. Man, i feel like such a yeast today.
by Fatkunt October 19, 2010
when one is harboring yeast cultures in their twat. I hear yogurt is good for curing such infections. If you don't get these infections checked out it may lead to greater trouble.

Yeast cultures make me itchy.
by sf9999 February 01, 2009
Yeast is a bodily substance of which a wild creature called the "Poul" enjoys running through his teeth. Pouls have been known to baths in the substance. The Pouls have a high concentration of yeast in their vaginas so that they will never run out of yeast.
Friend:Woah, look at that poul.
The wild Poul: yeasty is for feasty!
by Imabossassbitch(max3) December 07, 2013
Verb. To "yeast" somebody is to have sexual intercourse with said person while having a yeast infection. Recently this has become a mainstream fetish for Asians all across the world. Have you been yeasted?
Asian Girl: Want to yeast?

Asian Guy: Sure, I hear it's a new mainstream fetish.
by Credit July 08, 2010

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