Top Definition suddenly become uncool or unpopular (SEE: Geek, Nerd) ruin something, or make it useless
1.That jock got melvinized last week, and now hes hanging out with the nerds that go to the library during lunch to play runescape
2.The nerd who found the holy grail drank from it, and nobody longer wanted it because it was melvinized
by moedameyer washington October 12, 2005
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