Top Definition
The romantic relationship between Blaine Anderson and Cooper Anderson from the TV show Glee, also known as cooplaine. This ship name came from smushing together Anderson-incest. Probably canon at some point, they most likely fooled around before Blaine met Kurt, his boyfriend (and after, who are we kidding?)
Kurt: Is my boyfriend singing a break-up song with his brother?

Yes, Kurt, he is. Andercest.
by sunshineblaine April 06, 2013

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