A behemoth is usually used to describe an unusually large and powerful dick.
Captain Cave Man - You will all marvel behind my behemoth dick.

Mizzo - Hey guys, my dick is a behemoth.
Honky - Really?
Mizzo - Yeah. It's so big.
by Big ol Mizzo April 29, 2008
Get the Behemoth mug.
meaning something that is huge in size. The word Behemoth however came from the islamic arab myth, bahamut, a gigantic fish-like creature.
i have a pet bahamut in my fishtank
by ikubaru June 7, 2005
Get the behemoth mug.
Something large and usually quite revolting to look at, can refer to something living, or something inanimate. Also a metal band, and a large sea creature.

Can also be shouted out as a random chant for effect in any conversation.
Man: Urgh look at that fat chick
Friend: Oh shes a total behemoth!

Man: Dude look at the size of that pimple!
Friend: How big is it?
Man: Its practically a behemoth!

Man:So I'm gonna go to the shop now
Friend: Behemoth!
2nd Friend: BEHEMOTH!
Rest of friends: BEHEEEEMMMMOOOTTTTH!
by Simon Alnaimi April 11, 2008
Get the behemoth mug.
A Giant creature, a Behemotrh is a big-ass creature...
... Jeff shoots an arrow at the BEHEMOTH.
Arrow hits it in the eye.
BEHEMOTH DIE.
by Private November 7, 2003
Get the Behemoth mug.
Use Behemoth as a personal Jesus Christ in which to obtain Gnosis from.
by Urban Shaman December 6, 2007
Get the Behemoth mug.
An individual who is picked on mercilessly by his so called friends. Often four times the size of the average overweight individual, but always believes everything they hear on fox news. Daily diet consists of small woodland animals, large woodland animals, small woodlands, large woodlands, small and large city folk, small and large cities, small and large countries, entire planets, solar systems, galaxies, black holes, time and space itself and the unknown that lies beyond it. Has his very own gravitational pull. Usually doesn't swim as civilizations mistaking his body for new lands undiscovered will often settle on him.
Parent: "All five of my daughters were raped and murdered, cut into small pieces and fed to wolves!"

Behemoth: "yeah, but everything happens for a reason. A flower probably blossomed from the brutal raping and murder of your daughters."
by Damien marley cootenburry August 24, 2010
Get the Behemoth mug.
Behemoth is two things 1) A huge lion like monster on the final fantasy series also see catoblepus who is easy as to kill even tho its mostly at the end of the game. and 2) A black metal pagan band that changed to a satanic death metal band
*sighs* why could they stay pagan
by Lord Of The Whores September 7, 2004
Get the Behemoth mug.