good-time Charlie
An affable, lively, and entertaining man who is often or always seeking pleasure or a good time. I was something of a good-time Charlie back in college, always ready to party. I had a lot of friends and a great time, but I didn't get very good grades as a result.
good-time Charley
n. a man who is always trying to have a good experience; an optimist. Willy is such a good-time Charley. Who would believe the trouble he’s had?