So, please bear with me, as I’m an American. That’s not a term we use.
My partner has called me this before, after calling me every other name in the book. And his mother, my MIL, has called me that to him.
I don’t understand why, other than to say that they’re both foul. I have never called anyone names. I have done everything I can for him, given him all my love, been faithful. This relationship is nearing being over, as soon as I’m financially equipped. Have at it. Why would they call me this? And to show me a healthy view, how would your partner react to their parent calling you this? Because mine thinks it’s absolutely fine.