An extreme disappointment, someone who continually makes foolish mistakes and doesn't learn.
"Ardy is a fuck up. He ruins everything with stupid reasons and hide it until the last minute."
Bruce is such a great guy why is he with that bitch Lily. He should fuck up.
A Morristown-Beard student. Usually a male.
The kids at Mo-beard are real fuck ups.
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parts of philly, specifically Kensington, Frankfurt, Ollony, and neighboring parts of the city use it as a shortened way to say "shut the fuck up"
guy 1: hey man, I saw your mom working her corner last night
guy2 throws a punch at guy 1 knocking him to the ground
guy2: fuck up bitch.
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