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CAT 6 racing or "hipster racing" refers to commuter cyclists who race one another during their commutes to work. As opposed to CAT 5 roadbike racing, CAT 6 racing starts when a stranger riding a bike tries to pass another cyclist and the other cyclist speeds up rather than let them pass. This creates an impromptu "hipster race."

CAT 6 races are often started by testosterone-pumped mountain bikers trying to pass roadies or roadies who are horrified that a girl on a beat down huffy is pasing them going up hill.
Did you see that fucker try to pull a CAT 6 on me? He wouldn't let me pass him on the bridge when I was coming back from lunch.
by Leisure Class Hero November 17, 2010
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Aug 11 Word of the Day
You can tell by the way she walks, she got that WAP.

You can look at her face and tell she ain't got that WAP.
by Black Don August 06, 2020
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The future of speeds. It's cat5, but better.
Person 1- I got my house wired with cat5.

Person 2- What a loser, I just upgraded to cat6.
by Turtle-Guy October 08, 2018
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