A Stupid Comeback

Sister: You're so stupid.

Me: Calling me stupid doesn't make you any smarter!

Sister
Intelligence
Behavior
Short jokes

Explanation

Explain Bear

Alright listen up buttercup, here's the deal. The sister is calling the other person stupid. The joke is that the other person says that calling someone stupid doesn't make you smarter. It's like, duh, being mean doesn't make you cool, you absolute melon.