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The mom of a tween. Usually can be spotted at any Twilight premiere with their tween.
- "The only people who buy the Twilight books are tweens"
- "Nah, there's a big group of twoms buying them too"
by Julian Casa November 23, 2009
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A straight that isn't quite a straight when playing poker; a four card straight instead of five. Often causing the player to bet large on a losing hand.
I put all my money on that hand!

Too bad you had a twom...
by hellolalala1 March 13, 2009
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It is an acronym, which means that it stands for something longer. In this case it's TWOM, "the world of magic."
by Corey Cooper April 30, 2007
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