Top Definition
someone who says they'll stay up with you until midnight doing homework and then finishes early and goes to sleep and your life sucks since you're up alone doing homework
In the evening, Sarah made me watch YouTube videos with her because she said she'd stay up late with me and we could do homework later. She finished by 10 and went to bed and I was up til 4 in the morning! Sarah is such a midnight traitor.
by someone awesomely cool January 29, 2009
6 Words related to midnight traitor

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