Top definition
A person--usually a married co-worker--that uses the company Christmas party as an opportunity to get extremely drunk and dance inappropriately on other co-workers' spouses, usually leading to embarrassment the next day.
Todd: Dude, Steve is all over the boss' wife

Phil: He's such a Christmas Partyhoer. That's going to be awkward tomorrow.
by T Macalicious December 09, 2010
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