Thunder Chunder

When you ejaculate and diarrhea at the same time. The spasm (thunder) of both, normally due to sex after taco bell, is enough to break vertebrae and permanently disable.

You all hear ole Timmy got hemmed up? Damn Thunder Chunder done broke his back in 2 places..

fur chimney

(n.) - very hairy penis shaft

Heading to the barber to line up the old fur chimney