Smash Factor 

An amazingly tight, big ass. In relation to the popping sound it would make to during doggy-style or the way a quarter would bounce off of it.

smash factor is originated from a ratio in which a ball bounces off the surface.

"Damn fool, check out the smash factor on her."

"Dude, this girl last night had a NICE smash factor."

Smash Factor by mpimp00gf June 30, 2009

Smash Factory 

Any place where you take a girl, pornstar, someones sister, your friends mom who's a milf, etc...to fuck

Dude your sister is fucking hott.....I'm taking that bitch to the smash factory

Smash Factory by Preparation-H-Hotdog December 14, 2010