1. A Crank Case is your bladder. This term is usually used when someone has to go to the bathroom and doesn't want to be completly rude or just to be funny.
A sturdy case designed and constructed to hold one or more cranks or similarly dissatisfied and annoying individuals.
I tell you what Jerome. I sure wish we had put wheels on this particular crankcase 'cuz if we had it sure would be a helluva lot easier to tote Rich, Mitch, and the bitch around.