to go out in public without any boxers/briefs underneath your clothes so your junk is bouncing around for all to see
I saw Arnold Schwarzenegger walk the dinosaur on TMZ.
by kristenssn December 28, 2009
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When a man walks or jogs, without wearing underwear, and his genetalia is visable.
It looks as if Johnny was out walking the dinosaur this morning.

Hey look that dude's walking the dinosaur!
by LouBalooga December 25, 2008
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A phrase used in internet slang to respond to someone posting some old or outdated news as if it were new.

See also: "Jesus riding a dinosaur"
1st person: "OMG the Dell Guy got busted for drugs!"

2nd Person: "It's like I'm walking with the dinosaurs!"
by Demon-Fighter Ash May 10, 2005
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What fail trolls on 4chan use to end stories that sound interesting to entice readers.
I met someone in the night who had a unique character and personality. She hinted that she wanted a night with me, so we went to her apartment. There was a little light next to the door, I turned it on. She then unlocked the door using her keycard. I chose to open the door, get on the floor, everybody walk the dinosaur.
by sageru March 11, 2011
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haha funny song that plays at the end of the ice age 3
guy 1: did you watch ice age 3?

guy 2: yes and the song that played at the credits was pretty haha funny! whats the name of the song?

guy 1: the walking dinosaur
by babe haver April 22, 2021
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An alternate way of describing when a female is atop a male during sex. Originated from 4chan.

AKA The cowgirl position.
"Hey dude, did you sleep with Lisa yet?"
"Oh yea bro."
"How was it?"
"We kissed a little, then got on the floor and she walked the fucking dinosaur."
by Dmacattack93 August 15, 2011
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