What is S.u.?
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SU (said 'S-U', not 'sue')stands for socially unacceptable. It is mainly used as an interjection or adjective to describe things that are socially unacceptable, weird, bizarre, or simply inappropriate in a give situation.
Did you just ask that complete stranger to rate your ass? S.U.!
That girl is such a freak. All I have for her are two words... S.U.
See
Random Words:
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The call of Dr. Zoidberg when he is in danger.
"oh no, im under attack, *ink spray* w00p w00p w00p w00p"..
1.
A penis that hasn't been washed in quite some time that forms a crusty substance.
That is so discusting, he has a cheesepenis...