nobber

noun5

1. •
   (slang, offensive) A fool, idiot.

   • Shut your mouth you nobber or I'll stick that table up your fucking pooh hole. — 2016
2. •
   (slang) A blow on the head.

   • Spring went in, and planted a nobber that sent Carter down like a log. — 1880
3. •
   (slang, vulgar) An act of fellatio.
4. •
   (UK, slang) A security guard.

   • “I'm sure they'd pass her a note from you, as long as it's got a Yard seal and has been sprayed for nits. Not like you're a nobber, right?” Doyle shook his head. — 2014
5. •
   An assistant in certain trades.

   • As soon as he has sufficient coal picked loose to make it inconvenient he shovels it into the end of the chute; here it is taken charge of by a boy (called a nobber), who works it down the chute. — 1894