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One of the four main demons of Satanism. The other three are Belial, Satan and Lucifer. If you are misinformed, please read The Satanic Bible by Anton Lavey. As strange as it seems, Satanics do NOT worship Satan. We find those four main demons as accepting them as something common, such as a tree, and we govern ourselves in that we worship ourselves. We make our own rules to live by, our own laws and our own lifestyles. ^^
Mojo: Out of the four, Leviathan is my favorite.
Shimi: Naw, Belial is much better.
by Shimi November 20, 2007
a large sea creature, rumored to have like seven heads
album by mastodon, a metal band. the album is a concept album, based on the book "moby dick" a tale about a large whale and the whaler that endlessly tries to kill him. one of the greatest literary works of our time.
1 may the great leviathan rise from the deeps and have his 3rd head rip off your mincey little faggot balls, ya cunt ya!

2 did you pick up Leviathan? it's based on the book about that famous leviathan. i like that line, "white whale, holy grail"
by lola_lola23_2 March 10, 2006
Demon of the deep.
Master of all that is evil.
Puts forth kindness.
Shows no weakness.
I am LEVIATHAN. Do not mistake kindness for weakness.
by LEVIATHAN November 24, 2003
BD's monstrously massive cock, the largest of its kind.
B.D's leviathan came up from the deep to swallow its prey
by B. P. D. January 02, 2010
A. A very large Penis, in which many disrespectable females would like to "ride".
B. A Fat Whore. (Self Explanatory)
C. Referred to in the bible as "The Penis of Everlasting Life"
"Yeah he had a leviathan."
"Eww look at that fat leviathan" (james)
"I sucked the leviathan last night. It tasted like everlasting life and stuff."
by Bunnyas April 18, 2009
A Giant Behemoth that lived in the water. can be found in the book THE BIBLE.
Jeff gets on a boat and sails to the ocean to say 'HI LEVY" to the LEVIATHAN
by Private November 07, 2003
The giant dragon in the Bible
Leviathan was a giant dragon in the Bible
by Kenthar March 20, 2003