Anti-Reproductive Syndrome. Occurs when a person is only attracted to people who aren't attracted to him/her, and rejects all others despite looks or personality. Or when one self sabotages a good relationship. Can be pronounced "A" "R" "S" or more commonly pronounced ars, like ass with an accent.
Male 1: I keep talking to Amber, but she only gives one word answers.
Male 2: Ya, that's cause she's not into you.
Male 1: That's what makes her irresistible!
Male 2: Dude you should get checked up, you might have ARS