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.
by ASSFLAP January 14, 2021
 Get the ASS VOLCANOmug.
Get the ASS VOLCANOmug. A growing yet indecipherable mound, composed of unmatched socks, sweaters, underwear, pillows, books, catalogs, unopened mail, empty bottles, reading glasses, chargers, clean and dirty towels, exercise paraphernalia, countless and nameless other things, many forgotten yet long-sought, the entirety overtaking the room, cascading, poised to erupt.
by Monkey's Dad February 25, 2023
 Get the Bedside Volcanomug.
Get the Bedside Volcanomug. by Seven O Seven September 14, 2016
 Get the Silicon Volcanomug.
Get the Silicon Volcanomug. by Tyson the Bastard May 2, 2006
 Get the Southern Volcanomug.
Get the Southern Volcanomug. Dipshit: Yo dawg, I heard your girlfriend hit you in the balls yesterday.
Herp Nugget: Yeah, I had a testicular volcano for 7 hours...
Dipshit: Holy shit man, can you hook me up with one of those?
Herp Nugget: Yeah, I had a testicular volcano for 7 hours...
Dipshit: Holy shit man, can you hook me up with one of those?
by Derp McMuff March 21, 2015
 Get the Testicular Volcanomug.
Get the Testicular Volcanomug. Derek: Yo did you murder that poon last night?
Peter: You bet your ass I did. I volcano cummed everywhere!
Derek: Dude sick!!
Peter: You bet your ass I did. I volcano cummed everywhere!
Derek: Dude sick!!
by HDMImurcielago April 14, 2014
 Get the Volcano cummug.
Get the Volcano cummug. (n) A sex act which involves someone with diarrhea engaging in receptive anal sex. The removal of erect penis causes a rocket of liquid feces to stream out of the person's asshole. Considered VERY gay in Trinidad.
Roger: What's the number of a good carpet cleaning service?
David: Why?
Roger: I gave this girl a mud volcano last night and there is shit everywhere!
Selfish Michael: Gross!
David: Why?
Roger: I gave this girl a mud volcano last night and there is shit everywhere!
Selfish Michael: Gross!
by Room'd July 5, 2011
 Get the Mud Volcanomug.
Get the Mud Volcanomug.