The two aren't mutually exclusive. Neutral third party Gemini T. Google, what say you?

  Tim and Eric's Title Explained 

  By calling the show "Awesome" and "Great" before the viewer has even seen it, Tim and Eric lean into a persona of unearned confidence.

For contrast, this is what I'd call absurdism without being smug: https://www.reddit.com/media?url=https%3A%2F%2Fi.redd.it%2Fs...

I can see that - kind of like Will Ferrell has reflected on playing dumb people who are extremely confident. So I feel smug does slot in there but I don't feel like it defines it.