1 definition by climbtimeBITCH

Top Definition
A climbing game similar to HORSE in basketball. Two or more climbers will alternately climb up a wall/shelf/boulder one or two holds at a time in attempt to make their move too difficult for their opponent to complete. Each time a mistake is made or a player falls a letter is added. Whoever does not have ADD ON spelled by the time everyone else does is the winner.

This game is common among bouldering cllimbers.
Climber1: "Hey dude wanna play add on?"

Climber2: "Yeah. I hope you can set on a backstep to a pinch hold, bitch!"
by climbtimeBITCH July 02, 2011

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