A parody of Sharon Wheeler's Too Much Coffee Man.
CerebusTV Season 3 Episode 15, 11 February 2012
Was Too Much Coffee Man's appearance in Guys - an unauthorized appearance! - my audition for Shannon picking me to do a Too Much Coffee Man cover? I don't know. See, I was doing all these indie-comics characters - my versions of them - in Guys and I thought "How the heck do you work a guy with a giant coffee cup on his head into Guys?" I decided to make him a salesman for Too Much Coffee Liqueur – Pure Coffee & Pure Alcohol! Too Much For Me Please! - see what I thought was "A guy named Too Much Coffee Man, you figure he's got to be talking a little faster than he does in Shannon's strips." So it's just him and Cerebus sitting up way late, Too Much Coffee Man drumming his fingers, shaking his foot up and down real quick.
- Wikipedia Too Much Coffee Man Wikipedia article