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1. momster
A word used in conversation of siblings to complain about their mother. Comes from "mom" + "monster" = momster.
The momster is really angry tonight...
by Kitten123 Jul 10, 2005 share this
2. momster
A term of endearment for your dear mom.
"A puppy for Christmas?! Thanks Momster, it's just what I always wanted!"
3. Momster
n. a social networking site for moms of teens and tweens powered by Family Circle magazine
Instead of joining facebook, I'm going to join Momster to connect with other moms like me.
4. momster
An active member of the mommy mafia. (A mobster in the mommy mafia.)
"She's a new member of the West Oak Mommy Mafia - a momster in training."
5. Momster
A mom who is extremely scary, or scary looking.
Boy: Dude, that hag is a total momster!
6. Momster
A guy who lives with his family but acts like he is all that.

A person who has a lot of gear but lives at his parents.
I bought the new Iphone this week.

"Dude your a Momster and you can afford it."
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