This is the 10047th most frequent French word.
gosse
Child; kid.
Here, 'gosse' refers specifically to a young girl.
La gosse a perdu son jouet préféré.
The girl lost her favorite toy.
In this example, 'gosse' conveys an immature or childish behavior.
Il est un peu gosse dans sa façon de se comporter.
He is somewhat childish in the way he behaves.
In this sentence, 'gosse' is a colloquial term for 'kid' or 'child'.