"The Final Exam" joke
The two college football players knew that if they failed this final exam, they would be placed on academic probation and wouldn't be permitted to play in the Sugar Bowl the following week. The exam was fill-in-the-blank and the final question was, "Old McDonald had a _______."
Poor Bubba was really stumped. He knew he needed to get this one right to pass. Checking to make sure the professor wasn't watching, he tapped Tiny on the shoulder.
"Pssssst, Tiny," Bubba whispered, "what the answer to the last question?"
Tiny made sure the professor hadn't noticed, then turned to Bubba and said, "Gee Bubba, you sure are dumb. Everyone knows Old McDonald had a farm."
"Right, I remember now," Bubba said. He picked up his pencil to fill in the answer and immediately stopped.
Tapping Tiny on the shoulder again, he whispered, "How do you spell farm?"
"You really are stupid, Bubba," Tiny replied. "That's so easy. Farm is spelled E-I-E-I-O!"
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