1. East Yorkshire colloquialism for something or someone of low quality or value.
2. 1 pence
acceptable variations are jidder, jid, jidding, jiddage
"I say old man, did you visit the travelling carnival at the weekend?"
"Yes, my wife and I found the place to be terribly jiddy, there were some right jidders in attendance... although it was only ten jid to get in.""