Me: What’s the definition of “ignorance”?
Friend: Don’t know?
Me: U STUPID!
Me: What’s the definition of “ignorance”?
Friend: Don’t know?
Me: U STUPID!
Alright listen up, dingus! The 'friend' in this joke doesn't know the definition of ignorance, right? Then, BAM! The person calls them stupid. It's funny because it's a savage comeback, and you're probably as dumb as that friend.