fartknocker

A contemptible or annoying person.

He ran off, laughing and screaming. Dud jumped up and gave chase. "You little fart knocker," he said, clomping away, long-legged, into the dark. "Bring back here my Hubert Terrapins."

Well, alright, dammit, I don’t like hearing the little fartknocker cry neither.

A homosexual man.

"That little fartknocker didn't leave us any money, and he said it was going to be on him." "That's all right, I've got money," Elaine said. "He's so funny; I love him. He's always chasing some man."

You want more Beavis, closet fartknocker?

An instance of being thrown from, or hitting the ground after being thrown from, a horse.

[…] and, as one cowboy said, "I didn't get settled in the saddle before that hoss shore sent me on a fart knocker."

Slocum flew from the saddle and came down on the road a solid fart knocker.