When you nut in a girl then pour vinegar into the girls cooch, and then proceed to pour baking soda in afterwards. causing a mass volcano to erupt (especially when she queefs)
tyler: yoooo dude i just made jess have the most volcanic cooch everrrr!!!
Issac: yoo thas crazy, i need to buy some more vinegar!
Issac: yoo thas crazy, i need to buy some more vinegar!
by colemcz July 4, 2022

by go go gadget dick April 12, 2011

Volcanic fluff is the sexual act of shaving your pubes off, inserting the pubes in your significant other's anus and lighting them on fire. Get your partner to shit the pubes out that is mixed with their own poo while making volcano noises.
Guy 1: Man I just gave my girl a volcanic fluff last night
Guy 2: Lucky! How was it?!
Guy 1: it was an explosion of pleasure!
Guy 2: Lucky! How was it?!
Guy 1: it was an explosion of pleasure!
by ah_jessaboltins February 7, 2014

by Tropical Glyph April 16, 2017

by The-Legend-27 December 18, 2016

by Hercolena Oliver May 29, 2010

Violent eruption of liquid poop on the sternum of your tied up BDSM sexual partner while in the middle of telling them a story.
"Hey, I know we are in the middle of un-sanitary genital interaction while you are handcuffed to the bed. But I want you to meet Volcanic Carl. (loud but noise)"
by KingStoola February 5, 2023
