Being sexually attracted to anything and everything through all history of time and space.
"Tom just admitted to being attracted to toasters, he must be omnisexual!"

"Dude, that lamp post is so sexy."

"You know what I've always found really attractive? String Theory."
by openomnisexual April 25, 2013
The deluded Belief that one can have sexual relations with any entity, whether it may be male, female, animal, alive, dead ect.
Oh look there is Omni-sexual Pete, he is such an Omni-sexual. Yeah i know, i heard he likes ice-cream. Me too! am i Omni-sexual? Not unless you fuck it.
by bangbangbong April 02, 2011
noun. Used to describe a person who fucks anythiny that moves. If it doesn't move, often they will give it a push.
That Lewdminx guy is such an omni-sexual.
by Kid June 20, 2004
A person who is omnisexual.
Basically, it's a broad term used to refer to any and all sexual orientations, expressions, and so forth. From homosexuals, to transgenders, to sometimes people with foot fetishes, someone who is omnisexual will love you for who you are.
(Based off my own definition of the term)
Jimmy urine *Not confirmed*
One of the doctors in Doctor Who *Confirmed*
Myself (Is an omnisexual)
by AkatsukiLoverXDX3 March 08, 2014
one who proudly distributes his/her sexual affection over a broad range of places, people, and at various events..from "omni" meaning "to be everywhere at once" and "sexual" meaning "sexual"

not to be confused with the heralded Omnisexual: one who distributes his/her sexual affection in and around the Atlanta area esp. near the Omni arena and recently any other arena in the area
bro, here comes Soo. look the other way, before she tries to cast her omni-sexual self our way

by waynerino August 16, 2007
a sado-masochistic, homo, necro, peda, bestial, with the desire to screw anything:
animal, vegetable, or mineral!
that wierd guy you saw last week
by that guy you saw last week March 11, 2003
The act or acts of having intimate relationships with inanimate object.
Boy 1 "Hey did you hear that Billy is a omnisexual"?
Boy 2 "What does 'omnisexual' mean"?
Boy 1 "I dunno, I think they fuck plants".
by Chicken Sundae May 03, 2014

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