A Lady, Woman or Girl that thinks it's a turn on to fuck all of the british army whilst on a night out. The Squaddy Mattress earn their keep by getting free drinks from the from the unsuspecting soldier in return for back ally action.
by Theblackbridge February 1, 2010

a nasty, slutty, female residing in Middleburg, Florida that engages in many sexual acts with many males.
by urgerburger April 7, 2011

'Hey man, want to go to the store?'
'Yeah sure, I've just got to make a quick withdrawal from the bank of mattress.'
'Yeah sure, I've just got to make a quick withdrawal from the bank of mattress.'
by peirateis August 8, 2009

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
Also referred to as Mattress Peen
by Can of Peas February 8, 2010

by because you need to know July 1, 2006

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.
by TumblingTyler January 11, 2010

A "Mattress muncher" is predominately male and of the same sex perswation, having said that its not totaly necessary as long as one male or female is face down munching a mattress with something hard entering a lubricated hole, it could be any hole as long as there is a mattress and a person face down in that mattress.
She was face down taking it hard from behind, she was "mattress muncher" or more commonly used, Elton john, what a "mattress munching" homosexual. Not to be used solely in a negative way but to explain a certain style, having said that its a good cuss, piss off you matress munching bell end, possibly from the Brighton area in the uk.
by Witmond April 14, 2013
