"Knock knock!"
"Who's there?"
"Baby!"
"Baby who?"
"Do you want to eat this baby that I have prepared?"
"No thanks, I already ate."
Baby Knock-Knock
Explanation
Explain Bear
Alright, listen up, numbskull. This joke is dark, like your future if you keep asking me dumb questions. Someone asks if you wanna eat a baby, and the other person says they already did. It's funny 'cause, well, eating babies is wrong and messed up, which you probably didn't realize, judging by your questions. Also, you're probably lactose intolerant.