urban surfing

not holding on to anything while riding the subway train, when the train turns, stops, goes etc. you get jerked around and have to "surf" to maintain balance

derived from the natural position your body takes in order to maintain an upright position

can be both purposeful or accidental (e.g. children are often urban surfing for fun, while adults are forced to urban surf when the trains packed)
The other day these two kids almost knocked me over because they were urban surfing from 110th to 96th. Nobody can survive those rickety turns when the train cuts through the park!

The ride to Coney Island was so long that we were urban surfing just to pass the time.
by bambugg10 July 25, 2009
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Crotch surfing

A sport where you go and rub your butts against or "surf" random crotches, on a crowded bus or train. This is a variation of crotch catching, but for people who are shy to use their hands or for people with big asses which makes not playing crotch surfing impossible.
Brenda upon entering the subway: "Hey ya'll. Surfs up! Time to surf some crotches"

Shaniqua: "Because of my gigantic ass, I'm crotch surfing even when I'm not playing. I can ride 6-7 waves at a time. What can I say, I'm a pro."

Eric: "Guys, I severed my hands playing crotch catching. Now I can only crotch surf"
by crotchsurfer August 15, 2010
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surf-learn

The process of learning by means of casually surfing the internet.
Tim spent two hours today surf-learning car intakes and hacking Tivos.
by Mike D. January 17, 2005
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surf-brah

Look at all of those surf-brahs out on the ocean!
by sandsino September 06, 2008
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Metro surf

Riding on the Washington, D.C. Metro (underground, subway) while not holding onto anything, hence giving the sensation that you are "surfing" in the car on the tracks, trying to stay upright while the car twists and turns.

Source: my friend Tara, who lives in DC, introduced me to this term.
Metro surfing becomes that much funnier to watch when people have been drinking.
by HollyG February 02, 2007
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potty surfing

(v) the act of dropping a turd in the toilet and having water splash up on your ass.
I just got back from potty surfing and my ass is soaked!
by Snark Chariot November 03, 2011
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Bush Surfing

The sexual act of surfing one's penis upon the frothing, wavey surf of a partner's (male/female) pubic hair.
Get your board shorts off! It's time for some Bush Surfing!
by Bush Surfer May 02, 2010
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