As per the King Solomon in the old testament. It is used to describe any man who has an unusual attraction to women from different cultures and ethnic backgrounds. Solomon was recorded to have 600 wives and 400 concubines from all over the world.
Any man, though especially jewish men, like King Solomon was, who are obsessed with women outside of their own race.
Man Mark never stops talking about his fascination with latinas, blacks, and asian girls. He definitly has the old "Solomon syndrome" All he ever talks about is how much he wishes he could bone them.