The stimulation of a female cows genitals by using ones mouth. Usually done by young males in the Dinka tribes of South Sudan, in order to force the cow to lactate. This is believed by many to be the reason why many African American males refuse to perform cunnalingus.
I tell ya bro, she wuz all askin me to go down on her and shit, and I telled datfat bitch I aint doin cownalingus no mo'.
Codalingus (noun) - The act of practicing female genital oral stimulation using tuna sashimi to simulate the labia. Usually perpetrated by older men in sushi restaurants.
Dude 1: I can't go into a sushi bar with him any more.
Dude 2: Why not?
Dude 1: The way he eats raw fish; it's like he's practicing codalingus.