Define French Door Meaning

Sliding a woman's panties to the side instead of removing them, prior to a sexual act.

What you find under French Knickers

When you insert your balls into a woman's vaginal opening whilst she performs fellatio upon your phallic organ. Requires years of yoga training.

A Back Door French Kiss is when one person places their own anus against someone else's anus and then proceeds to defecate into the other's anus.

When you french kiss a girl without touching lips or swapping spit... just slapping tongues on the outside.