STP

STP is an acronym for Surplus Tit Packets. Surplus Tit Packets are formed when women wear a bra which is quite evidently too tight/small, combined with a form fitting shirt, such that parts of her breasts which can't be adequately contained by the ill-fitting bra create a spill-over affect.

It's bad enough that the girl had FUPA, but she also had STP; she was bursting out all over.