Definitions by AndyRBR

cof

Cum On Face - Sexual act often used when describing services offered by an escort.

The escort I saw last night provided cof in addition to bbbj and fs

cof by AndyRBR January 12, 2006

PSF 

Acronym for Porn Star Finish. When a prostitute allows someone to cum on her face or body like a porn movie instead of cum inside her.

Most guys will do just about anything in exchange for an energetic, wet, sloppy blow job with a PSF.

PSF by AndyRBR December 30, 2005