doing anything that makes someone upset or angry. "you ruined my surprise party!!! now i can't trust you anymore"
describing when someone becomes irrationally angry. "gosh, what did you do ruin her surprise party?"
to look on the lighter side of a bad situation. "at least he didn't ruin your surprise party"
you ruined my surprise party when you slept with her.
by kekerawr February 6, 2011
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