What is a ZOT ?
It's the planet King Klobber rules. He tries to kidnap Underdog to marry his daughter, Princess Glissando, because no man of Zot is worthy of her.
But Underdog fights back and goes back to earth so King Klobber kidnaps Sweet Polly Purebred and holds her hostage until Underdog agrees to marry Princess Glissando.
When the Zotians fight, its called Zotting because their arms extend out of their sockets to Zot! their opponent.
This is basic American history, people!