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Shut The Fuck Up And Sit Down! A new text message shorthand, for when STFU (Shut The Fuck Up) isn't enough, and the person is being really persistent
"Guys, this isn't what we should be doing."
"Enough, we don't want to hear it any more."
"But, really, I don't think this is a good idea"
"Oh, STFUASD, jerk!"
by Demandreddarklight August 16, 2009
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