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1.
A pairing of two people or characters that you would never expect to be romantically compatible. Crack couples are usually meant to be funny, but sometimes they actually happen.
Dom: Matthew Bellamy and Kate Hudson... what a crack couple... it'll never las-WHUUUU????? She's pregnant!?!?!?!

...........................................................................*tear*
by The One Who Sat the F**k Down January 14, 2011