Smack is the reward for a good draft, a lucky win, a soft schedule, etc. Smack is about tweaking statistics, spinning up stories that show your team as the best franchise ever. Smack comes from the gut, is usually bordering on obnoxious and cruel and is the reason I play Fantasy Football. Honestly, I don't care if I win the trophy. I just want to dish out misery to everyone else in my league each week.
Good smack cuts right to the chase.
It does not require many words just the right ones. It is usually ruthless and politically incorrect. And if it is aimed at your team, it hurts. But then my mom never got to got the opportunity to play your sorry 0-3 team. Take notes so that you'll know how to win next year.