mumberfuck

A mumberfuck is someone is beyond the point of stupidity so you need something hard hitting. When you have asked a clear question and the person just completely misses the point, making you have to ask them multiple more times, leading you to need a curse word.

Ex: your sister isn’t answering you and she is sitting in the same room as you so you text her and she answers something stupid.
Sister: im in the chair
You: WELL ARE YOU SLEEPING THERE MUMBERFUCK!