When you're asshole is like Mount St. Helens and is ready to explode like a volcano.
"Bro, you better pull over. I gots volcano ass and might splatter all over your nice upholstery"
by hughmonger October 31, 2003
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When a partner inserts rubbing alcohol into a stretched asshole and lights it on fire then the partner farts out the alcohol making a fiery explosion. Ass volcanos are known to cause permanent damage to the asshole.
The woman got an ass volcano for her birthday.
by ASSFLAP January 15, 2021
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The move used by all the rap video dancers. Done by standing in place and shaking your ass rapidly.
Yo! Dat girls doing that ass volcano on weezy!
by Kevin John McCormack March 30, 2008
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An ass volcano is the act of inserting baking powder, vinegar and red food coloring to a gaping asshole (normal it has been stretched out from a vigorous session of anal sex). Once the ingredients have been inserted you will have a grade 7 caliber explosion that even an all taco bell diet can not top.
Did you hear about that piece of whore trash Justin rammed the other night ? I hear he rammed her right in the ass and gave the cum dumpster a fucking ass volcano. I would makke the whore my wife.
by Douger the d-bag June 25, 2009
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when a girl shoots cum out of her asshole like a volcano the cum is always steaming hot
i fucked a girl a gave her an ass volcano
by darky slayer69 January 11, 2019
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