The art of inserting two fingers into a female anus and piercing the membrane through to her vaginal passage. Once this has been completed, the male partner inserts his erect phallus into the anus, and continuing through the previously created route into the vagina. This should only ever attempted with full consent from both parties.
"Bitch was such a freak, she even suggested we try the French Connection."
"It's the third time this week I've been to the hospital, Pete keeps insisting we do the French Connection."
The unfortunate occasion when, after anal intercourse, the penetrating subject then urinates to find a thin stream of feces escaping from the urethra. This occurrence is said to resemble a syringe, hence it's given name.
"I fucked her ass for so long, the slut gave me a sticky syringe"