When two women, of the lesbian variety, are performing the scissoring act on one and other, a male, preferably with a large penis lays flat beneath the two females and has his penis massaged by the two clashing females. This does not effect the male in a stimulating manner, but is more favored for bragging rights.
"I was lying there with a massive erection, when two chicks started scissoring on top of me. I totally was gettin it cut off.... It was awesome."
British Royal Navy term for the withdrawal method of contraception, Fratton being the last railway station before arriving in Portsmouth, which is the end of the line.
Matelot 1: "Firkin 'ell mate, that's a right swamp donkey you've pulled, do you need a condom"