Definitions by AllenHalas

S.T.D.T.F. 

A girl that looks like she's down to have sex, but is also probably so easy that she might not be carrying something. Proceed with caution.

See related topic: Jersey Shore

Dude, A: Nobody says that. And B: watch out, she's S.T.D.T.F.

S.T.D.T.F. by AllenHalas December 2, 2010