Acronym; standing for; Cum on your face. Can be used also by replacing 'Y' for 'H', Cum on her face. To be used in public places where it may not be appropriate to say "cum on your face."
What I wouldn't give to coyf.

I was walking in the mall yesterday and I saw a girl. After approaching her I politely asked; "excuse me miss, would you mind if I coyf?" She, of course, obliged.
by Mr. Gisriel December 4, 2008
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COYF is an acronym for Cock On Your Face.
Usually used to describe a homosexual person.
1. "Crossy you COYF, you had you cock on that lads face."
2. Crossy is a right COYF
3. "What's that COYF called again?
"You mean Crossy."
by Nick Barker June 7, 2007
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