1 definition by Ohio's Lover

Top Definition
(Open Mouth Syndrome) This is when the person you are currently making out with uses excess amounts of tongue, spit, and or slobber.
Friend: How was she last night?

Friend 2: Dude, total O.M.S. Pretty much terrible.

Friend: Oh know, that bad?

Friend 2: I needed an entire beach towel to dry my face off afterwards.
by Ohio's Lover May 06, 2009

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