Mattress Back 

When a woman does not get off her back. Constantly has sex.

Marie fucks everyone. She's a mattress back

Mattress Back by Fingers9705 December 9, 2008

mattress back 

1. (noun) A girl who has sex so often, whether with the same partner (nympho), or many different ones(slut), that her back seems to be constantly on a mattress.
2. a condition derived by a girl who engages in said activities.

1. "That girl is a mattress back if I ever saw one."
2. "You're gonna get mattress back if you keep sleeping around like that."

mattress back by Pleasure Boy 1, erotic fiction author December 11, 2004

Mattress Back 

The name you give a person who spends a lot of time on their back (on a mattress).

My sister is the Greater Southwestern Mattress Back

Mattress Back by Fagadactol March 14, 2020

mattress back whore 

A girl closely related to or one and the same as a "Cum Guzzling Gutter Slut" So ready for sex that she has a mattress strapped to her back at all times.

Rob's nickname for his girlfriend was either "Mattress Back Whore" or "Cum Guzzling Gutter Slut" though he rarely called her those names in public.

mattress back whore by xeno1 February 11, 2014

nickel lay mattress back

A woman who can be persuaded into sexual intercourse very easily and often may have bed sores from being on her back so much.

"Dammit bro that nickel lay mattress back stole 200 bucks out my wallet before she caught her uber ride."

nickel lay mattress back by JSmith lu 43 April 5, 2017

with a mattress in the back 

a way to spice up any sentence in a way that even "your mom", "that's what she said", or "in your granny's oven" can not achieve; from the hit movie edward scissorhands.

Bob: I did some gardening today.
Fred: ...WITH A MATTRESS IN THE BACK!

with a mattress in the back by Nellie Lovett May 3, 2008

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.

Matress Back by Scissor Man November 8, 2009