Top Definition
When a friend of yours gets a girlfriend or boyfriend and they update their relationship on facebook, you click on their name to see what they look like and they are always the ugliest person in the group photo.
"Dude, Fred got a new girlfriend!"-Kyle
"Dude, let me see!" -Frank
"Oh, god nevermind, The ugly duckling effect strikes again." -Kule
by GRMCE March 26, 2012

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