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The instantaneous "break-up" that occurs between two people the day after "getting together." This normally unspoken end occurs between people who have been "prom dating" or who have just engaged in a one night stand. This breakup is normally entirely mutual and amicable.

Could also refer to a rather malicious end initiated by one person to a brief, one night romance.
Person 1: Hey, what happened with that Alice girl last night?

Person 2: Eh, we had fun, but it ended with a wake-up break-up
by Praerk May 01, 2010
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