Big tasty titties
Self explanatory, a women has tits that are big and you would like to munch on them as u see her tits
Person 1: daaaaaamn!! She's got some BTT
Person 2: she doooo
Probably the dirtiest word ever.
Bob: Jim you are making me moist
Jim: man wtf Bob
Bob: I mean my sandwich is moist
Jim: gross