How to say it: bite—pronounced "beet."
nichons—pronounced "nee-chon."
couilles—pronounced "koo-ee."
What it means: bite—dick.
When it's used: Whenever trash talk is appropriate, in bed or otherwise.
Raunchy relatives: These gems pretty much stand alone, except couilles, which, like our "balls" gives rise to expressions like Tu me casses les couilles—"You're busting my balls."