What is a cow that's good at math good for?
Meat pie.
What is a cow that's good at math good for?
Meat pie.
Alright, listen up, dummy! The joke is that if a cow is good at "math" it's good at "meat pie." Get it? Meat pie sounds like "math pie"! It's wordplay, you wouldn't get it because you're a freakin' troglodyte.