1 definition by b.i.g. F

Something putrid in smell or essence. Puts the witness in a state of disbelief as to why something this horrible would exist.
Bro 1-"Yo man that girls face is grank"
Bro 2-"Dude you just think that because you ain't seen your mommas vag"
Bro 1-"Man, not cool."
by b.i.g. F April 24, 2009
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