Buwup

A Buwup is an explosive device that derives its destructive force from nuclear reactions, either fission or from a combination of fission and fusion reactions. Both bomb types release large quantities of energy from relatively small amounts of matter. It was invented by Parmen Chillisburg in 1829.

Samuel: “What’s that coming at us from the sky? Is that a nuclear warhead?”
Carmen: “That’s not just any nuclear warhead- that’s a Buwup!”