Something your mom calls you when you are being annoying
Mom: "Joseph stop being such a fucking brat!"
A total jerk who goes around mocking & mimicking you like an idiot.
How stupid.
YOU BRAT!! STOP IT AND GET SOME HELP!!
A brat is not what Nina did today at school, a brat is a rich spoiled child who demands for more and is selfish. Nina is my Canadian bestie and if Ms. Brandy ever messes with her again I will cuss her out.