duck duck chicken

Duck duck chicken is a game you play in localities with a significant, open transgender population (Singapore, Thailand, India, etc.) where you try to guess whether a female appearing prostitute is a duck (biologically male) or chicken (biologically female).

Will: Duck!

Dan: Chicken!

Eugene: You ladyboy?

Ladyboy: Yes. Teeheehee!

Everyone loses at duck duck chicken eventually.