dimmock

noun2

1. •
   (UK, slang) A foolish person; a dimwit.

   • "No he wasn't! My dad said he was in Wham." "What, your dad was?" "No, Geogre Michael, you spoff. And he wore a little white glove." "That was Prince, you dimmock!" — 2015
2. •
   (slang, no longer used) Money.

   • "I wouldn't take any dimmock [money] from a cove like yourself, even if you held it," the smith chuckled. — 1956