Definitions by Maureen Bierbower

s2p 

An abbreviation for "Sit To Pop," a balloonist (or looner as they are commonly called) fetish of sitting hard on balloons until they explode. This provides sexual stimulation and even sexual release for some.

Of all the looner activities, s2p defintely provides the most explosive orgasm.

s2p by Maureen Bierbower December 9, 2008