the horizontal monster mash

sex with a chick... fucking a chick, banging a chick.. that sort of thing

omfg! Their doing the Horizontal Monster Mash on my leg!!! (WTF?)

by teh_n00berx0r June 12, 2006

horizontal monster mash

basically to have sex lying down, cannot be vertical
or doing the crazed dance of the time, also while lying down
also can mean 2 monsters having sex, lying down

i walked in a they were doing the horizontal monster mash

by Paublo Sanchez July 1, 2006