blacksnake

Alternative form of black snake: any of several relatively harmless North American snakes.

A long, tapering whip.

A penis, especially a black penis.

[He] couldn't keep from staring at my blacksnake. He'd probably never seen a dick like mine. I couldn't help but stare at his prick too. He had the smallest dick I'd ever seen on any man. […] She went over to Raft and pulled down his underwear, revealing his blacksnake. In front of Bogie, she eased down on her knees, skinned back the foreskin of Raft's penis, and insertd it into her mouth.

To whip with a long, tapering whip.

He said to Stanbrough, “George, you damned son-of-a-bitch, you blacksnaked my aunt with a blacksnake, and I am going to wear this out on you, ” and began striking him with the buggy whip. He struck the deceased several times ...

They were slugged and blacksnaked, run through a gauntlet, deposited on cattle cars headed away from the city, and told never to return.