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
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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.

by sf9999 February 2, 2009
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2 or more men with a Yeast infection.
Don't interact with those Yeasts over their, Gross
by Awkward-FuckTard505 March 1, 2018
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A vaginal infection due to lack of female hygeine and excessive slutage.
The slut never used toilet paper and developed a yeast infection.
by Sarah April 6, 2003
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An term used to insult and describe a really ugly looking person, comes from the blending of the lexemes "beast" and "yeti" and means UGLY! or DOG!
Can be used as a noun or as an adjective.
NOUN
dialouge:
Person 1: "hey! check out that person over there"
Person 2: "oh man... YEAST!!!"

ADJ
Person 1: "ey bro did ya see that chick i was danc'in wif in da club?"
Person 2: "fuk bro.. she was yeast"

*ugly person walks past*
YEAST!
by unclekevin.* May 7, 2008
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n. The resulting gunk that forms in a pussy when the girl screws too many guys, or wipes her ass back to front.
Tiny Tina couldn't remember not to wipe her butt front to back so she became a factory of yeast.
by Sallys March 23, 2006
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yeaseded is yeast and should yeast all over your yeast
yeast is a yeastededdd
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