How do you say BRAT in french?

[ElPerro]

Hey guys,
The word Brat, Bratty, Bratty Pants, etc...works super well. How do you say that in French? Is there like an expression or something?

[Charkosh]

I'm pretty sure its "Gosse" e.g. Gosse de militare = army brat

[Blasphemy]

Brat is not really 'gosse'. Gosse means child. Brat would translate by garnement, peste (lil' brat -> petite peste). The right translation is 'garnement'.
There is no such adjective equivalent to bratty.

[Wigwam]

Brat : garce, chipie (i wouldn't recommand those)
Spoiled brat : bébé gâté (Québec), petite princesse
Bratty : prétentieuse, arrogante, allumeuse
Bratty pant : pantalons d'adolescente
The word "adolescente" is usually pejorative in Quebec, especially when used on an older girl. You should use that for brat.
You look like a brat/You look bratty. = Tu as l'air d'une adolescente.
(I'm a translator)

[navarre]

I can't think of a translation that carries the same playfullness as "brat" in European French, I'm afraid you have to forget about that line, at least in French.