One who shows interest in a person for their superfluousintelligence. Now, that alone may sound positive. This, however, is not the case as brain diggers would only like to use the brainpower for their own selfish needs.
1.Girl 1: You are such a brain digger.
Girl 2: What? Why!?
Girl 1: You only make friends with the smart people so you don't have to think of stuff on your own.
Girl 2: I'm sorry!
One who goes on and on talking about a topic or insisting something despite the reluctantlistener. This term can be loosely used for many varying usages.
Example A: Spok, I've heard about your new car a thousand times. Stop digging my brain.
Example B: Uhura doesn't stop nagging me to go to the doctor, what a brain digger.
Example C: I was at Chekov's party yesterday, and there was this brain digger there that didn't stop talking to me. Eventually I just left.
A right wing or far-right person, most likely of Indian, Mexican, or Turkish descent, whos brown and LARPs as a white person or white "aryan" person online. Braniggers are most commonly found on websites like Twitter, 4chan, and Instagram.