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What happens after your Mom counts to three.
Mom: 1, 2, 3
Child: Oh no, she's becoming a Momster
by Yermy Battled Warter December 08, 2016
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2
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 July 10, 2005
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5
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."
by Regan and Lisa Brunsvold December 28, 2007
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7
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.
by momstermanda January 07, 2010
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