underwear, panties
On peut voir sa culotte si on regarde en dessous.
You can see her panties if you look underneath.
— Roma (2018)
Mais comment tu peux oublier ta culotte ?
But how could you forget your underwear?
— Parasite (2019)
Sa culotte est mise sur sa tête comme un bonnet.
Her panties are worn on her head like a hat.
— Memories of Murder (2003)
Ma culotte couvrait mes yeux, mais je les ai gardés fermés.
My panties covered my eyes, but I kept them closed.
— Memories of Murder (2003)