A valuable piece of punctuation that could potentially save you from looking like a retard.
Often disregarded and ignored in the rants of angry YouTube commenters, the comma sits on the bottom right side of the keyboard.
"He's the best bitch"
Would be calling someone a 'best bitch'
"He's the best, bitch"
Would be calling someone the best, then insulting someone who disagrees.
The comma is a lonely button on the keyboard.