Secret Tweaker pad where we hide. Tweakin is when you are on meth...hence its the place where Bradley tweaked for days and wrote songs. Listen to some sublime songs and you will hear it alot.
"My secret tweaker pad (STP) is now the hottest dope spot in town I guess."- brad
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 badenough that the girl had FUPA, but she also had STP; she was bursting out all over.
STP is, as we learn in science class, is short for standard Temperature and Pressure. But what it actually means in the hipworld of today is Scary, Terrible Puffin.
"Oh man, did you see that STP?!"
"Yeah dude it's radioactive but embroiders!"
"Whoa."