1 definition by EasyEggplant

An acronym for "Eyes closed mouth open". Ecmo is generally considered an unflattering facial expression, however can also be used to refer to enjoyment, or sex.
The picture in Barry's would almost make a great profile pic, but I'm ECMO.

It was incredible! I was ECMO all the way through!
by EasyEggplant October 27, 2010

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