Meaning:
Lit. “a whore won’t rip another whore’s head off”. This is a funny rework of a much more standard “kruk krukowi oka nie wykole” which means “a crow won’t poke another crow’s eye out”. Both expressions mean the same: the two people/organisations you are talking about are, even if not allies, the same type of thugs and they won’t intentionally hurt each other’s interests.