A bra with so much padding/push up that the extra volume alone is larger than the size of someone's boobs. Mattress bras are usually extremely thick and uncomfortable to wear.
"Dude, this chick I took home last night had MASSIVE TITS. I was so excited until she took off her mattress bra and she went from a DD to a B at best..."
by UrbanDictionaryDoctrine May 30, 2017
Get the Mattress Bramug. that large wide thick juicy dense baguette thats been sitting out all day and might be a little hard to cut
by maezvi March 1, 2025
Get the Mattress baguettemug. by Daproduca May 20, 2022
Get the Mattress foodmug. A small Midwest political party lead by an anonymous individual operating under the pseudonym “Rambo”. The mattress party focuses on quality sleep and strong familial relationships. Their most popular advertising campaign parodied the popular “Make America Great Again” slogan and in combination with the popular internet meme “Netflix and chill” to create “Make Netflix and chill Great Again. Although an effective meme, MCCGA failed to promote the mattress party.
I supposed I’d describe myself as a moderate that really enjoys a good night’s sleep.
Oh, so you’re in the mattress party?
Oh, so you’re in the mattress party?
by MP Advocate May 14, 2022
Get the Mattress Partymug. When you and your partner are engaging in doggystyle sex, and the males penis accidentally slips into the anus. Then due to the pain, the female partner jumps up and down stomping her feet on the mattress
by Butt stuff November 21, 2019
Get the Mattress stompermug. Matt: "hey Sam, I heard you met someone new on tinder!"
Sam: "Once upon a mattress . . . "
Matt: "Say no more man, I know how this is gonna end."
Sam: "Once upon a mattress . . . "
Matt: "Say no more man, I know how this is gonna end."
by Sexual Conotations October 3, 2017
Get the Once upon a mattressmug. by daddykillaz69420 October 17, 2021
Get the Mattress chickenmug.