— smug·ly adverb
— smug·ness noun
While I certainly agree with the third definition, as that is in fact the very way that my gym partner ThePGHA and I use it, I would like to humbly offer a fourth option:
Which I observed this morning while running at the reservoir. After going to the gym. At 6:30am. On my day off. What’s that lovely word Sheldon uses? Oh, right.
Synonymous with smug.