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.
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When you take your piece/pipe under your blanket while you're on your bed, and you toke it. Gets hella thick hella fast
Dude I did a mexican mattress at home yesterday, I was so freakin' stoned
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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!
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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!"
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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."
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