A short form of "shut the f#@& up".
'YADA, YADA, YADA"
"SHUT THE FUP!"
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A device used to measure or detect the presence of fupon particles.
The needle was buried on my fup-o-meter when I saw that chick's huge fup!
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Verb, To face palm someones own forehead, usually hard in a friendly matter.
Fup! I am gonna fup you so hard.
A stupid fat useless prick who is just is a dickhead. In Latin a dickhead majoris.
Fup stands for Fat Upper Pussy.
Her fup was bulging so far out she looked pregnant.
"I went over to my friend's moms house and she left me a FUPS"