What is French Fuck?
1.
To masturbate by placing one's penis between a woman's breasts.
Definition of clinical insanity: when you would prefer to be submitting entries to the Urban Dictionary rather than having a French fuck with Britney.
2.
Stimulation of the male organ by sliding your rod in between a nice huge set of tits until climax
I gave Maria a nice French Fuck in between her huge gazongas. The result was banana juice all over her yapper.
See