Secret Tweaker Pad, from the Sublime song, S.T.P. It's a place where one can chill and do drugs and hide out after committing a crime.

Someone people turn to when they're sad who makes them feel better.

Shavin The Pubes!!

Stone Temple Pilots. Originally stood for Shirley Temple's pussy. But the band had to change the meaning when they became main stream.

Stand To Pee.
You know... guys do it.

This usually applies to transgender men (FtM female to male).

Standard Temperature and Pressure, a Chemistry term referring to gasses under normal or ideal conditions.