Definition from Wiktionary, the free dictionary
- Resembling or characteristic of a weasel.
- a weasely face
- Pettily devious; misleading.
2005, Lauren Mechling; Laura Moser, The Rise and Fall of a 10th-grade Social Climber, page 289:
- "It's just, we decided even the slimiest and weaseliest of friends deserve second chances," said Lily.