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1.
An overlapping crush occurs when two people have highly similar characteristics and/or interests, and are liked by, or like, the same person.

Also occurs when two people are liked by one person and equally do not reciprocate those feelings.
William: Hey dude, you know that Rebecca likes me?

Louie: Dude, she likes me too!

William: What the hell?! But I don't even like her!

Louie: Dude, me either... Definitely not.

William: Holy crap!!! We have overlapping crushes!
by L.J. and W.A. March 20, 2011