Pencil's Insult

Alright, listen up, you knucklehead. So, like, the pencil tells the paper it's "flat" 'cause, duh, paper is flat. Then the spoon tells the pancake batter it's "thick" 'cause, you guessed it, pancake batter be thick. It's all 'bout them describing the obvious, which is, uh, kinda funny, I guess? Maybe not to you, since you needed me, Explain bear, to tell it to you.