"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".
"
Suce, salope!" -- "Suck, slut!"
"La patrone est une vraie salope" :
The female
boss is a real
bitch.