Someone who is attempting to do free-running or any similar movement, but failed miserably, then posting a video of it online.
He thinks by doing that he'll be cool, but he's such a chainer.
by Desmond B. January 17, 2008
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an addicted smoker, smoker of cigs, cool people but bad, smokes a lot
maria: hey what are we doing
later, Fred?
Fred: you know what were doing, we are chainers now!
Maria: o ok so who is going to steal the cigs?
Fred: You can this time and then i will *pay you back* later
by gina486 June 07, 2005
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