Someone who is being overly grumpy and rude (essentially a bitch).
menstrual negative nancy debbie downer myrtle
- There's no fucking glasses.
- Try the dishwasher.
Oh, for God's sake! Right, we're going out.
- Out where? - I don't care.
Outside.
Out of here.
Fucking hell, I'll buy you a new glass if you're going to be such a menstrual Myrtle about it.