It's what you say to someone when you are freakishly twin like. You can say it if you're wearing the same outfit, say the same thing, etc.
by Sadester May 30, 2006
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Omg Twins
• OMG
• omg wtf?
• omg becky
• OMG girl
• omg lol
• OMG OMG OMG
• OMG RONNY!!!
• OMG 66
• OMG! Ponies!