Noun. A smelly fart. Named after the electrical goods manufacturer for its comically anal name.
Mike cleared the room with his grundig. It smelt like something had crawled up his arse and died.
a word to describe a person who is scared to ask people awkward questions, likes it kinky, usually is pretty hilarious, likes it when people jack off and is just a pretty cool person.
woah!, this person was such a grundig when he asked me if i have ever jacked off in a kitchen!