Subject-To-A-Better-Offer. A non-committal, pragmatic approach to one’s social-life, work-life and life in general with the often-unfortunate consequence of belittling the party with the inferior offer.
Friend 1: What time are you coming to my 21st?
Friend 2: I've got a couple of things in the works but, if they don't work out, I figure I'll arrive around 11.

Friend 1: It's my 21st and you're giving me STABO?!?
Friend 2: A man's got to keep his options open.
Friend 1: You're an arsehole. I don't want you there anyway.
Friend 2: You're such a Gen-Y douche!
Friend 1: You are!
by pab_lo March 26, 2010
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Staboing means to make angry or obscence faces and gestures at other people who might have wronged you or made you angry.
"I'm gonna go staboing at these people in Walmart."
by HelpfulLinguinist February 19, 2013
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