When a person drops a coin and a rhythmic circular movement ensues, causing the coin to breakdance so fast, that it can only be stopped by standing on it.
(man drops coin):

Man 1 : ohhh man look at that coin go!

Man 2 : yeah fam, that coin is breakdancing!

Man 1 : Yeah, that is one sick Breakdancing Coin
by ReppinDetmold July 11, 2009
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