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Acronym for Masturbating tabbed out. Usually refering to being out of game screen and unable to see chat due to the need for self gratification. Usually accompanied with watching internet porn.
Brb, Mto.

Again!? didn't you just get off?
by Lagsalot April 25, 2010
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3
We don't worry about they because they don't want us to win, but MTO (My team on).
via giphy
by Misunderstood Destroyer April 06, 2016
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4
Multiple Tongue Orgasms - the burst of flavor you get when biting into something delicious.
"Have you tried that apple pie yet? MTO's all the way, baby'
by Shekhina November 30, 2008
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5
Acronym for "Man Talk Organization". A group founded by 5 viet dudes.... and tuan.
by sonsterz April 20, 2008
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