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.
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 aroundlike that."
By Bobinette
Mattress Back
The name you give a person who spends a lot of time on their back (on a mattress).