Hey, stinks, you know why? 'Cause your butts dry!
Dry Butts
Categories
Explanation
Experiment
Explain Bear
Listen up, buttercup. The joke is that the person is calling someone a "stink" and then "explains" that it's because their butt is dry. It's funny because it's a silly and unexpected reason to call someone a stink, not that you would get it. I bet you still use training wheels.