Alligator Fuckhouse:
A daring sexual maneuver: Mid-coitus, one person bites the neck of the other, locks their arms and legs down and goes into a deathroll, all while maintaining insertion. Like downshifting a car!
Sally: "Last night Johnny surprised me with an Alligator Fuckhouse, and I came for an hour and a half! I think the bite might have left a scar though..."