Top Definition
This sex act occurs when a male cuts their wrist, enough to draw blood, and uses that blood as a lubricate. When the male has ejaculated, the resulting image looks like a volcano. The original name is "Emotional Volcano."
1st Male-"Dude! My girlfriend and I were messing around when she asked if she could do an Emo V. O. with me!'

2nd Guy-"So what'd you do?"

1st Male-"She cut her wrist and used it to jack me off!"
by M4st3r_0f_N0cl0ck April 19, 2010

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