A person who is sexually attracted to men, women, inanimate objects and animals.
I know a man who once had an orgy with some cats, a few bricks and his parents. He's obviously a quadrisexual.
A person who is sexually attracted to: Males, Females, Animals, and introducing the newly discovered gender: an Aman
An Aman is a rare creature of unknown origins who has been surviving individually within its own group....hopefully in the future replicas will be created to end its endangered state.
Man Aman is a quadrisexual !