"Dance floor make-out". Usually occurs under the influence of alcohol. Most of the time a DFMO is voluntary, but they can also occur when a drunkard grabs your face and starts making sweet sweet love to it.
That drunk asshole totally stole a DFMO from me at the bar last night!

by Ali W December 29, 2006
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Acronym for Dance Floor Make Out. Resulting from accidental close contact and banging beats; alternatively, strategically planned as a gateway for 'bigger and better' things. Easily dismissed and not countable as a hookup.
1. We were grinding and I accidentally DFMO'd with a frosh. But it's ok, everyone was too drunk to notice.
2. There was just so much DFMO that I had to get out of there, or make out with BillyBigAss, and that just couldn't happen.
by PhantomOfTheGoogooplex October 14, 2009
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Dance Floor Make Out. The act of making out with a girl while drunk on the dance floor.
"Check out Johnny over there. He's been dancing with that chick all night and now he's getting a DFMO.
by PMchoisi June 8, 2009
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DFMO, stands for 'don't fuck me over' a term used my girls to tell people to not fuck them over, usually not naming a person. Having everyone ask for an @___.
Did you see her Twitter last night??
-no

this bitch subtweeted about me, look "DFMO this time and maybe we could work things out"
-bro shes giving you a second chance, ask for an @ to make sure
by Pussyboyseldon December 22, 2015
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