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The act of walking quickly towards an approaching taxi cab so as to hail and enter it before someone else who is obviously waiting nearby for the same taxi.
Larry: What you upstream me?
Upstreaming Lady: Everybody upstreams you idiot, you don't just stand there like a jackass.
Larry: That's anarchy we need some rules!
Upstreaming Lady: Whatever! (flips the bird as cab drives away)
by NYCurbedFan January 24, 2012
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Upstreaming (V.): When one fills the asshole of their partner with water then fucks the water out of said asshole.
Sure white water rafting is cool but you ever try upstreaming?

I used to date someone who was into upstreaming. That shit can change your life.
by ............D0 September 12, 2019
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