Mattress Penis

After attempting to start some sexy times with your wife or girlfriend by rubbing your hard-on on her leg or against her back you get rejected or ignored, the respectable thing to do is hide your boner in the mattress by laying on your stomach.

Also referred to as Mattress Peen

I tried to sex up my lady last night but ended up with mattress Penis

by Can of Peas February 8, 2010

Matress Back

A dirty whore who is always on her back and takes it in the Vag...

A.K.A. Billy's Mom

Man I feel horrible, I climaxed in that matress back.

by Scissor Man November 8, 2009

mattress

One who has excessive sex with more than 5 boys in a fraternity.

stefani has had sex with many boys and the frats call her their mattress.

by Anonymous March 13, 2003

black mattress

a white girl who only sleeps with black guys.

Nicole is a black mattress

by because you need to know July 1, 2006

mattress gymnastics

Performing elaborate sex acts in bed, usually involving some degree of flexibility.

Question: "How did Kevin pull his hammy?" Response: "He and Marien engaged in a round of mattress gymnastics last night."

by Capistrello February 17, 2009

Mattress Freefall

The period of time between hearing your mattress frame crack and landing on the carpet afterwards. Caused mostly by obesity. A growing problem in the United States.

*Crack*
Person 1: Dude, we're entering mattress freefall.

by TumblingTyler January 11, 2010

meatpress

When you put your bare ass on someone's face when they're passed out or asleep.

Dude Boen is passed out let's meatpress him

by Jangade March 20, 2011