ratter
nounEtymology From rat + -er.
1
Anything which catches rats, especially a dog trained to catch them.
- Grey cat called Snooky who was a good ratter even with his balls cut off.1963, J P Donleavy, A Singular Man, published 1963 (USA), pages 90–91:
2
A rat dog.
› Anything which catches rats, especially a… › A rat dog.
3
A rat terrier.
4
One who rats; a traitor; a deserter.
5
A pirate miner, a miner who digs out ore or paydirt clandestinely and runs