It's OK to celebrate your success, but try not to be too 'smug' about it.
You can wipe that 'smug' look off your face.
a 'smug' smile/expression
(..) cable TV. My wife doesn't even have cable. Why are we discussing this? No. Something stinks. And this one-- You. In your $ suit... and that smug smile on your face. Dealing for that piece of shit. I don't like it. The law requires me to serve... my clients and their interests as best I can. (..)1995 Se7en