when a girl cums during sex, or when fingered.
last night, she was like a volcano.
by mikev May 26, 2006
The greatest and best vaporizer in the world. Milks the vapor for you into a plastic bag, which is then inhaled through a mouth piece attatchment. The purest way to get high off of marijuana, other than eating it. Also used by some chefs to flavor food.
"Hey man, I got really high off that Volcano...almost, dare I say it...too high."
by Jack Herer September 27, 2006
1. A really good vaporizer that uses bags which fill up with vapor pretty fast. It's expensive as hell, around $500.

2. When a smoker coughs or laughs into a pipe or bong, making shit fly out of the bowl like lava out of a volcano.

3. An opening on a planet where lava comes out.
1. Mary got enough for a vaporizer!

2. God damn it, Jimmy pulled a volcano and all the bud fell out. ):

3. Hawai'i has volcanos.
by contagion; July 24, 2008
a girl queefs while on her period, causing a bloody eruption
Dang! Candace, your vag is like a volcano!
by ilikeeruptions June 06, 2009
A gift from god. The volcano vaporizer is probly the greatest device i have used to smoke. It shoots hot air upwards towards the bud and causes the THC to "vaporize" into a plastic bag in seconds. Or you can use a 9 ft bag like we did one time. Just place lips on mouthpiece of the bag and inhale. It is also one of the safest ways to get high. Even after just one normal bag will get you blazed. The cool thing too is that it doesnt burn the weed. It just removes the THC which in turn turns the bud brown. Its nasty to smoke the leftovers and doesnt really get you high. But you can turn that into hash.
Dude 1: Volcano dude is home!
Dude 2: Hell ya lets get fuckin throwed
Dude 3: Imma call him
(Everyone goes in and all 5 people get their own bag)
Everyone: DAMN!!!!!!!!!!!!!!!!
by TXstoner38 July 14, 2009
Verb. While taking a hit of weed through a pipe or bowl, the stoner coughs. The term Volcano refers to the flaming herb and burning ash that is erupted out of the bowl, often burning holes in carpet or even pot head's hair!
My new glass bowl hit so hard, the first three people that hit it volcanoed!
by Pyrologik June 03, 2005
When taking a bong hit, coughing back into the chamber, causing the bong water to shoot out, making a complete mess.
Damn... volcanoing sucks balls.
by styxandstones February 13, 2005
A sexual position involving at least one male. When the male is about to ejaculate, he lies on his back with his penis sticking up. He then shoots his load up into the air and back down. The other member of this sexual intercourse will then have the pleasure of watching the cum ooze down like lava or licking it off.
Beth's boyfriend was too fat to get off his back, so he just did a volcano and Beth just watched it ooze.
by HooShawNaw May 10, 2009

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