STP

1. Super Tight Pussy

2. Standard Temperature Pressure

Let me get that STP!

Virgins usually have STP ;)

by bangbangbang!!! March 31, 2010

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 9, 2008

STP

STP is, as we learn in science class, is short for standard Temperature and Pressure. But what it actually means in the hip world of today is Scary, Terrible Puffin.

"Oh man, did you see that STP?!"
"Yeah dude it's radioactive but embroiders!"
"Whoa."

by Fat Chick Who Likes to Dance July 4, 2009

STP

Same Time Post on a message board

Message by Weasel - 13:21:05

OMG DIE

---
Message by Jeff - 13:21:05

LOL XD

by WeaselJeff February 22, 2004

STP

San Diego Landscaper, marathon runner, and all around good guy. Once was lost, saved by an angel named HED.

Damn Gina! Did you see STP order off that Japanese menu? That a lot of food!

by Beast24 December 2, 2009

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 27, 2007

STP

Scientifically Tested Petroleum®

Petroleum company which makes products such as oil treatment and fuel treatment for automobiles.

Official sponsor of Richard Petty and the number 43 Plymouth NASCAR machine.

by Bitchin Kitchen August 15, 2003