Did you make that Fermi?
Pupil: I did I shook my head Teacher: You don't expect me to hear it rattling from here do you !
Vehicular man's laughter
He had Jello fever!
Because Japan isn't good at basketball.
John says: "That was an atomic bomb"
It can be a very Hubble-ing experience. These jokes may not be funny for you, but they are Fermi.