The action of ejaculating(typically for punishment) on somebody or something with a very high pressure and with a large amount of ejaculate
by Unicornbeast July 19, 2017

A small island in the middle of the Pacific that has a very strange lifestyle, including employing OPs.
by OP Dick March 17, 2004

The sexual act of ejaculating into your partner's navel and then proceeding to slap the area on or around the belly (preferably the lower abdomen a.k.a. FUPA) creating a ripple effect that forces the ejaculate to spray from the navel. Many pride themselves on their Krakatoa giving ability. The ensuing explosion is often compared to a volcanic eruption, hence the slang Krakatoa.
Gomez was overjoyed to see that the spurt from the Krakatoa was enough to drench the city of Pompeii.
by Dax Nottinghood January 6, 2010

An exclamation used by nerds/ losers when they pwn and/or own another player in a video game. Preferably World of Warcraft or the Halo sagas.
Yeah KRAKATOA motha fucka!!!
by The Chri February 6, 2007

Annoying people who mostly behave like assholes. The word derived from some east-european countries where "krack atoss" means behaving like an asshole/jerk/idiot.
by Krakatoas February 28, 2011

by Tim Wood April 25, 2006

by Elena Vespirio July 26, 2010
