A fork of Rural Dictionary
A term used to refer to a person who is extremely cranky, irratable, or grumpy. It can also be used to refer to someone who is a perpetual pessimist, or a constant downer.
Gertrude makes sure to get a lot of sleep at night so she isn't a crank a zank the following day.
Something to call somebody when the person cannot think logically or be reasonable.
Dude, you're a Zank right now.
Man, I can't believe I was friends with a Zank.