You can't tuna fish.
Because of all the seaweed.
I always loved this one: (works better said out loud of course) What do you call a fish with no eyes... A FSHHH
Uh I need someone to sing the girl parts of Grease songs with me
Good mourning, good mourning, good mourning!!!
You can tuna piano, but you can't piano a tuna.
A nut for a jar of tuna.
Chicken your pockets - I think your keys are there!s