Similar to male teabagging, a female squats over someone’s face and lowers her vagina onto the person. Clam Slam is used as a practical joke or prank when performed on someone who is passed out or asleep. It can also be a sexual act as well.
At the sorority house last night, silly Sally drank 3 bottles of Boone's Farm wine passed out on the floor again, but this time the whole pledge class gave her a Clam Slam! Like, tots embarrassing!
by Dick B. Tricklin July 3, 2018
Get the Clam Slammug. A clam feast eaten whilst rollerblading in tight spandex suits listening to 80s disco primarily hosted in Cincinnati and is often primarily attended by the gays.
by BryceisCrispy November 13, 2022
Get the Cincinnati Clam Slammug.