Noun. A name used to describe a species of VERY DANGEROUS jelly-fish about the size of a finger nail. It's venom is said to be a hundred times that of a cobra and it can kill a human in two minutes if the wound is not treated. If the wound is treated...be prepared for some MASSIVE pain.
Oh my god,IRUKANDJI!
by DarkPhantum June 11, 2006
Get the Irukandjimug. a tiny little fucker that packs a massive punch. jelly nets do nothing to stop them. box jellies are just as bad. often known as the asshole of the sea.
i got stung on the ass by an irukandji while surfing up in cairns, and ended up in the hospital for 3 days. i hope these fuckers go extinct.
by AuSSiE BuGGaZZ February 02, 2010
Get the irukandjimug.