cocksucking

Fellatio.

Anita Bryant says that cocksucking is a form of human cannibalism; she decries the loss of the child that is the sperm.

Used as an intensifier for something objectionable.

“Twenty-five goddamn cocksucking years,” the old man said.

You all rap a story you tell me is glorious as Galahad's gallop is near, but your lies can't deceive me I know that you'll leave me crying these cocksucking tears.