goniff
/ˈɡɑnɪf/
noun
- A thief or dishonest person, especially one who is sneaky or untrustworthy.
- My uncle called the used car salesman a goniff after he tried to sell a broken truck.
- She felt like a goniff for taking the last cookie without asking.
- The old man warned us to watch our wallets because there was a goniff in the crowd.