Top Definition
Unidentifiable nastiness. See gra-dew.
Dude, clean your fridge. There is some sick gras deaux growing in there.
by Joe Langley June 03, 2005
A really really big uber shit.
Where's Julie-Jo?
Oh, she's in the little cowgirls room and has been for an hour! She must be having a helluva gras deaux!
by Clay Rookdoggie November 18, 2004
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