initially coined and used in comedy routines by Michael Lester and John Russell in 2012, "shemping" is a term commonly used in the Twin Cities comedy scene.
A sexual act, usually performed by male virgins, whereby they incorrectly slide their penis between the woman's thigh and bedsheet, and think they are having vaginal intercourse
"This bloke thought he was inside me, but he was thigh-sheeting. I let him have it"