The act of swaping chewing tabacco while passionately kissing your boyfriend/girlfriend. Try frenchdip w/side of au jus where you use your sex partners anus/vagina as a spittoon for an extra nicotine buzz.
After meeting Mary Jo at the local smoke smoke shop where she bought a pouch of "Chattanooga Chew", Johnny invited Mary Jo to his hay loft for a frenchdip. Mary Jo responded with "Can I have extra au jus on the side"?
The Situation had just peed in the toilet and he left the seat up. Snooki was drunk and she went into the bathroom for a pee. She fell into the toilet, and she french dipped into the dirty toilet water.
After smothering your mouth in a woman's au jus, you procede to place her natural roast beef back in your mouth, rub it around and then decide to continue eating. Repeat as often as you want to enjoy your meal. NOTE: Double dipping (SEE DOUBLE DIP) is permitted, and is in fact encouraged.
After going down town, I decided to wipe my face off in her special area, and then I asked her, "How bout a FrenchDip?"