Definition from Wiktionary, the free dictionary
gavver (plural gavvers)
- (Britain, slang) A member of the police.
2007, Kevin Brooks, The Road of the Dead, page 177:
- "Yeah, the gavvers were after Dad for a bunch of stuff he'd done years ago — fake license plates, stolen cars, that dodgy Range Rover deal he had going..."
2009, Kate Wild, Fight Game, Book 1, page 28:
- The gavver in the car had really rattled him.