A sudden outburst of laughter, usually used in a sarcastic way or texting in place of "lol" or "lawlz"
literal meaning-
Bonnie: I just laughed so hard I threw up a little bit!
Cara: Bahahahaha, oh my god LOLCANO!

sarcastic meaning-
status update: b0r3d, texxxt meee!!

reply: lolcano..
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The point where one believes that they may erupt/explode in LOL's. (An Abbreviation for Laughing out loud). Commonly affiliated with ROFL or LMAO. Only the most humerous of events should be appointed a LOLcano.
Russell: What did you do on the weekend?
Sid: I went out, and I kissed a girl.
Russell: LOLcano
by harry meat March 01, 2011
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when your laughing so much you start spiting all over the place like an erupting volcano
boy: hay girl
girl: what
boy: suck my dick
by Jamieb95 January 21, 2011
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Commonly used by homosapions raging from the ages of child hood to the teenager years in which kids become more disabidient. It is an eruption of laughter not caused by the tectonic plates.
Steve: There was a lolcano in science today.
Simon: lolcano
Steve: Over some fat kid getting stuck in his model volcano.
by sitush January 08, 2009
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laughing out loud. LEGIT. a mixture of lol and volcano. better definition for lol <3333
you: hey, wanna meet up tonight, so we can do sexy time?

me: you wish. LOLCANO
by D.A FOOO REALZ <333 January 11, 2010
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