squat mattress 

A girl who fucks a lot of squatters. Often a squatter herself, though not necessarily.

That girl fucked all the guys in the squat! What a squat mattress!

squat mattress by Tigrrlily November 21, 2006

Squaddy mattress 

A squaddy mattress is a girl who's slept with more than 5 members of our lovely armed forces. General slag, scally and chav.

"That Laura is a right squaddy mattress she's shagged 17 of them!"

Squaddy mattress by ali November 30, 2004

blood on the mattress 

a really bad one night stand with a guy that just can't keep it up.

On a Sunday morning, Blanche asks, "Hey are you going to call that guy you went home with last night." Rose responds, "No it was just blood on the mattress."

blood on the mattress by blanche deveroe September 23, 2008

shared mattress 

A girl that sleeps around, whom "everyone" can sleep with.

Derived from a Norwegian military expression "felles madrass" .

That girl Megan is such a shared mattress, did you hear that she slept with 5 different guys at her last party?

shared mattress by 18382 August 24, 2009

Beaver Mattress 

A feminine napkin, specifically a Maxi-pad

I got's to go to da store & buy me some beaver mattresses - gettin' kinda runny down dere!

Beaver Mattress by Blorb2! September 18, 2012

Squaddie Mattress 

A girl who likes to have sexual encounters with members of the armed forces, usually from the army. More often than not during/after a night out when they’ve just met them.

A lot of girls in Darlington are squaddie mattresses, they like the boys from Catterick Garrison!

Squaddie Mattress by QuakerOatsReadyBrek November 23, 2017

Ditch Mattress

A mattress found in a ditch. Or an insult. A rude/inconsiderate/ghetto/impolite person.

Stop being such a ditch mattress.

Ditch Mattress by Pb&jelly:-) April 19, 2019