The Constipated Mathematician

This is a pun. "Worked it out" can mean to solve a math problem or to relieve constipation. A pencil can be used to do math or as a suppository.

• Mathematician
• Pencil
• Toilet
• Constipation
• Math
• Bathroom

• Why was the math book so sad? Because it was filled with problems.
• What do you call a broken pencil? Never mind, it's pointless!
• What did the constipated bum say to the other bum? Piss don't s**t on me!
• Old mathematicians never die; they just lose some of their functions.