A person who is attracted (and wants to fuck) everything. Like homosexual for a person who is attracted to someone of the same sex, heterosexual to someone of the opposite sex and bisexual to both genders.
Dog: Am I gay?
Dude: I don´t know. Are you attracted to man dogs?
Dog: And lady dogs
Dog: And chairs
Dog: And pillows
Dog: And ducks
Dog: I want to make love to the whole world
Dude: Right. You're Globalsexual