On episode 800 of the Savage Lovecast at 16:10 there's a good ol' boy talking about missing his sweet lady Barb, and about how he missed "Crankin' the Hog on them Big Block Chevys" (BBCs) with her as a euphemism for having sex. I absolutely fell out hearing this. The best term for having sex I've heard in a very long time!! Sorry about Barb dude. She sounds like she was a keeper!
(Verb) Formerly Cranking Butts. To smoke cigarettes profousely. Someone who cranks butts is usually also defined as a chain smoker. Originated in upstate NY on college campuses as students stood in large masses outside of dorms "cranking butts."
Although widely known as a dance from 2007 created by Soulja Boy Tellem, the phrase also refers to male masturbation. The reason it is known as such is because the penis is similar to a solider with its helmet, and it is cranked like a crankshaft during masturbation.