Top Definition
(noun); a 30 day commitment to spam everyone's Facebook in an attempt to tell people useless details about your life for attention; a horrible disease spreading through Facebook; a stalker's best friend; (verb); To be unbelievably annoying.
Girl: "OMG!! 30 Day Challenge!!"
Girl: "Weelll... 30 Day Challenggeeee!!!"
Guy: *Facepalm*
by the way.. please stop.. March 01, 2011

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