To be emasculated, either imediately or over a period of time. e.g. dressing like a woman or being on the receiving end of a strap-on or generally being the bitch in a relationship.
My girlfriend wears the trousers around here, me? I'm just totally mimsified.
The state a man enters smoetimes after being for some time in a long term relationship with a girlfriend.
You're used to be cool, now you're just mimsified!