Someone who gets around, and often sleeps with members of a fraternity.
Person #1: Let's do some word association. Frat Mattress.
Person #2: Whitney
Person #1: Why?
Person #2: Because it just seems to fit.

or

Whitney is such a frat mattress.

by rusty bellige November 18, 2008
Get the Frat Mattress mug.
When two people take a mattress off a bed(usually in a dorm hallway),hold it in front of them holding it by the sides or the back and get a big distance between them. Then, they run and charge into each other and whoever stays standing is the winner.A commonly known late-night college activity.
I grabbed my mattress and ran at Cody after I heard we were mattress jousting.
by Big Short January 21, 2009
Get the Mattress Jousting mug.
Music people listen to while having sex.
This Chris Brown album is awesome but it's mostly mattress music.
by BobbyHerf December 16, 2015
Get the Mattress Music mug.
The person in the office that everybody sleeps with (or on).
It’s not a surprise to me. Pam -is- the office mattress.
by JambaJews December 23, 2008
Get the Office Mattress mug.
A white chick that only fucks black men.

Normally a fat white woman that will lay on her back and take the cock from any black man.
Dude, you want nothing to do with that fat bitch, she's a gangster mattress.
by Stu Rowland June 15, 2007
Get the gangster mattress mug.
A code name for a whore house. It is most commonly used by people when they take trips to Las Vegas and they would like to be discrete about their true intentions.
Jeffy enjoys going to Mattress Warehouse whenever his wife begins to yell at him.
by joemammy March 3, 2007
Get the Mattress Warehouse mug.
When two men share the same room and sleep on different beds, they eventually get to know each other and discover their homosexuality. After having gay sex, the taker is considered to have had his "Mattress Popped", and therefore sleep on the same bed afterwards.

Makes more since if one slept on an airbed beforehand, where the definition comes from.
Brent: Hey, do Matt and Shane still live together in two different beds?

Shawn: Nah, Matt gave Shane a Popped Mattress and now they share a bed.
by thetwixter June 9, 2010
Get the Popped Mattress mug.