shu up

faster/better way of saying "shut up"
Girl pointing to other girls boyfriend: He looks like a fuckin chicken when he runs.

Girl with the boyfriend: Shu up!
by beky June 02, 2006
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SHU up

Special Housing Unit in prison. Protective custody.
He molested all those little girls. He better SHU up when he gets to prison
by Dr. Blabby June 29, 2022
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