noun
brat
BRAT/bræt/
A child spoken of informally or dismissively.
The child acts like a brat by deliberately spilling the cereal.

Etymology
Probably related to the older garment word brat, though the transition to a child is uncertain. The connection should not be treated as settled.
In context
We brought you back, you brat. And you're not even grateful.
More examples
- He apologized for being a brat about the delay.
- As an army brat, she moved frequently.
- The memoir describes growing up as a theater brat.
Forms
brat · brats
bratty adjective — badly behaved or immature
Similar words
- spoiled child
- A description of the usual target of the insult.
- pest
- Someone persistently annoying.