You can tuna piano, but you can't piano a tuna!
You: You can tuna piano but you can't piano a tuna! Person getting told joke: What about the jar of glue? You: I knew you'd get stuck there
A. You can't tuna fish.
He said "I wanna two sheet onna the bed".
Crabs on your organ
Oh, you guessed it right... the tuna fish!