Refering to a person (more often than not a female), who is unusually gross and or disgusting.
Uh, dude look at that girl!

She's just a big bucket of yuck.
by good[mail]box February 23, 2010
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A symbol of, the worst of the worst of the yuckies. Like cleaning a hair ball out of the drain pipe in your shower after Seth shaves his pubes, or picking dried semen off the walls of his Suburu Baja, or possibly even using a man hole as a fleshlight. Yuck is life. Yuck is love. Big Yuck is the symbol of all thing yucky.
Oh wow, cleaning the long matted together Seth pube was the Big Yuck.
by CuckSuck3001 December 10, 2021
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