"Salope" is better translated as "slut" than as "bitch".
Bitch can better be translated as "chienne".
It is the general french word for a promiscuous woman.
It also carries a meaning of being egoistical and disrespectful of others. Like the english word "nasty", "salope" has two meanings : sexual promiscuity and egoistical behavior.
When used for the egoistical behavior caracterization only, it can be correctly translated by "bitch".

Female name which refers to girls in general.
French word for Bitch

generaly french for bitch, comes from the french "sale" durty in english.
in the french dictionary the definition of salope is "femme sale" durty woman

Means "bitch" in French. Comes from the word "sale", which means "filthy", "dirty".

Technically speaking, "salope" better translates as "slut" while "chipie" and "rosse" are better equivalents for an obnoxious, mean-spirited, psycho woman. But "salope" still works for mean women, and it can be used for a woman who is both hateful and easy.

A stupid hoebag that has nothing better to do but have her numerous boyfriends smack her ass and fuck her all-day-long!?!!