mackjock
A mackjock is someone who's got the looks, the smarts, and the attitude to back it up. They're the type who will talk your ear off just to prove they're better.
'I got 10 likes on my post. You're like, literally, the worst.'
'You're just a nobody. I'm a somebody.'
'I can do a pull-up and still make a TikTok. You can't even do a push-up.'