when you butt chug Champagne on thanksgiving by shoving a champagne flute up your ass and then pull the glass out so your anus prolapses, causing a “turkey neck”
When a woman performs fellatio on a man while stretching the skin on her neck back and forth creating a jiggling effect while clucking/gobbling (or gagging) creating an intense suction on the penis.
Man, this chick was totally turkey neckin' the shit out of my dick last night.