Coffee Crown

A coffee crown is a noun. Used when one has consumed so much coffee they become inebriated. It only lasts a few hours but the hangover is similar to that of a blacked out night, uncomfortable and generally excruciating. Each person's coffee crown may be different in size but usually, a coffee crown is an average of 20 cups of coffee during a 23.5 hour period.

I had a coffee crown all day, killer let down.