Acronym for 'Tonka Fucking Tonka' Like FFS, the word is used to express feelings of annoyance and distress, however, the word 'Tonka' comes from an ancient tribal language and so it is a much more primitave way to show such feelings.
An acronym for "Tiny Fuckin' Titty". this is usually said in the presence of tiny fuckin titties.
Jane: Hey Bill, how are you doing today?
Bill: I'm good, you and your TFT's look swell
-or-
Bill: Hey Bob, that girl has a TFT!
Bob: Thats my wife, she had boob cancer and they had to take them off, asshole.