The act of performing a sexual act while one or more people are in the same room.
Usual occurs at drunken parties and gatherings.
Dude, I Silent Submarine Sexed Sarah last week after you passed out on the couch,
or
Me and Sarah had Silent Submarine Sex on the floor while you guys were playing monopoly.
While wearing a Condom for your safety, you dip your cock in Tabasco sauce then jam it in a woman’s ass. The burning sensation that was caused by your submarine would be as if a nuclear bomb went off in her ass!!!
The act of having intercourse with a woman during her period, wherein the man (or the person with the dildo) penetrates her vaginally, creating the "rust," and then penetrates her anally, sinking it in a deep dark place.