a boo that has not yet/will never fulfill all the requirements of being a real boo. An understanding that two people are not friends, but not exactly "boo-thangs" either.
He was my pretend boo until he started talking to a girl that he knew that i knew.

My ex-pretend boo can listen to Best Thing I Never Had by Beyonce and think of me.
by thebestthingyouneverhad November 15, 2011

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