If it has a pulse . . . . or even if it hasn't, because the gender or even species of the object of the lust matters less than the arousal and satisfaction of the person who claims the pseudo-scientific label pansexual. We would have called them a "randy b*****d" and steered clear of them.
Wetherspoons to become a bit quieter?

Within my family and friends it's a derogatory term to discibe people who come out with this clap trap.