A sport involving the combination of flips and kicks from a number of tumbling and martial art disciplines to create a display full of interesting movements that would make any conventional athlete disgusted. Despite the sports ability to be awesome, generally it is associated with poor technique, uncleanliness and wankiness.
Overheard during a Tricking session at the gym
Tricker: "Bro did you just see my awesome triple cork?"
Gymnast: "Yea man, it was almost like a layout with 3/1 twist. Except that your knees were bent, your toes weren't pointed and you rotated off-axis. Did you see my punch double front?"
Tricker: "Pretty sure that's impossible bro."