a makeout session which is intense enough to be a physical workout. The connotation alludes to a hookup, but the word can also used in the context of a relationship.
Dude I got some awesome cardio in yesterday!

It was a date at the movies; of course there was some cardio!

So Nicole, did you get any cardio in on after school on Friday?

by Kookoo chachoo April 27, 2008
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A veiled reference to the act of snorting cocaine.
Yo you wanna go do some cardio?
by KFED April 17, 2006
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A girl who is sexy, fit and buff. One of extreme beauty that she has to be good at everything including cardio
shes bare cardio man
ye bruv i love cardio girls
by baptisteee January 11, 2011
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Masturbation... Stimulation of ones own genatalia for the sole purpose of releasing seamen and stress away into the great beyond that is ones own sock.
Cardio...Cardio...CARDIO!!!! Hmmmm.... This sock may need washing, but its probably good for another run.
by Willy Sanchez December 04, 2003
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a fine female specimen found near elliptical, treadmill, stair-stepper, or other calorie burning equipment. usually finely attired in roll-up shorts, sorostitute mixer shirts, and nike shox.
Dr. Swole pwned that cardio bunny on the elliptical.
by Billy Bong Thorton September 17, 2005
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A man who tells everyone he goes to the gym, but in reality all he does is run. No weights are allowed in a Cardio Chris.
Karen: I heard John goes to the gym now

Terry: Na he is just a Cardio Chris

Karen: oh...
by Bedford Bible Basher October 26, 2014
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