Top Definition
s/u
phrase. "Shut Up." Commonly used during instant messaging as a shorthand varient to request someone's silence.
IM person 1: Dude, your girlfriend's ass it HOT
IM person 2: You need to s/u man, she's right here
#aim #instant messaging #shorthand #aol speak #yahoo
by Shifty Eyed Goat September 11, 2006
5 Words related to s/u
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