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.
by Adam Craig Urban May 09, 2008

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STP
An Internet slang acronym with two meanings.

A. Same Time Post, when two people post a message at the same time to the second. Popular on message boards such as GameFAQs.

B. Second To Post, when someone posts posts second in a message board topic.
A. "Both of us posted at 9:13:06. STP!"
B. "New board? STP!"
by rklamer August 22, 2007

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stp
Secret Tweeker Pad

From the song by Sublime, "STP", the hot dope spot, the place you go to buy and do a shot, ("and if she made off with my last clean rig, I'm gonna kill that fuckin ditch pig", rig is a syringe) of heroin, which was what Bradley Nowell did. "My secret tweeker pad is now the hottest dope spot in town" It's the place to cop dope that too many people are finding out about. "I just take it nice and easy, don't want no sheriff breakin down the door to raid me"
Let's go to the STP and boot up
by sublime_heina November 24, 2006

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STP
Sexually Transmitted Powers; like STD's, but groovy
Daily Planet editor: Ms. Lane, why are you flying?
OR
Cheneyeneye: I didn't use no protection and I got me a STP. Holla!
by definitely anonymous August 03, 2006

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stp
Serinity Tranquility Peace. One of the earliest slang names for methamphetamine.
Let's score some STP dude, and tweak.
by Psycho Miko June 09, 2006

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STP
Suck the pussy or stroke the pussy
He knows how to STP dry!!!
by BigBootyRed87 March 10, 2011

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stp
slap that prositute
That guy stp in the street late last night
by Wendix January 20, 2011

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