A greeting to a friend who is leaving a party or social gathering when it's the first time you've seen them all night, even though you've both been at the same party the whole time.
Derek (appearing suddenly from other room): "It's getting late dudes, I gotta jet. Catch you later."

Jon: "Hey Derek! I didn't know you were here. Alright guy, what's-up-see-you-later."
by jonnywords June 14, 2011
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a way to address a room full of people, in a public and/or private place, perhaps after one of those " i just don't give a shit" days.
scene: walking into the break room after you've realized the last 4 hours you've been working have produced nothing but shit.

enter room:
person 1: hey bill whats going on
person 2: bill, BILL, billy boy!
person 3: hey billy

bill: (mumbles) yeah um hum... WHAT'S UP YOU MOTHER FUCKS! hows your day asshole? Mine's turned to shit how about that? :promply walk to the vending machine grab your snack in the midst of the silence and go outside to smoke:
by jadiepoetatie January 29, 2007
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