1. British slang for being broke.
2. Showy or flashy, pretending to be valuable but looking cheap.
3. Insolent or cheeky.
1. “I am gagging for a pint but I’m brassy so I cannot come out tonight”.
2. “He’s too brassy for my taste, all show and no delivery”.
3. “That child is getting more brassy by the day, now she’s talking back to her grandmother!”.