Top Definition
A person who is a bummer, makes people frustrated, and is never fun. This person does not relize that they suck. They think that what they are doing is for the best but it really just upsets people.
Girl 1: "Sorry my mom says i have to finish my homework. i cant come over"

Girl 2: "she is such a boo-munch!"
by S.Valentine<3 June 30, 2011
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