Twink is a slang term for a young and attractive gay man.
The term twink originated in the 1970s and there are a few different theories about its etymology. Some believe that twink is an acronym that stands for Teenage, White, Into No Kink. Other people think that twink is an abbreviation of the word Twinkie (an American fast food snack). Just like a Twinkie, a twink is a treat that is tasty but lacks nutritional value - or so the theory goes. A Twinkie's phallic shape and creamy filling are factors which also support this theory.