inb4 going to the bathroom
Alright, I'm tired of not understanding. What is inb4?
Also probably a lot of you got excited when you saw I put a post on here; Maybe I'm leaving too
'inb4' , an abbreavation of 'in before' means that the person gets a post in before something expected happens.
In this case, Darvince is saying 'in before [fiah is] going to the bathroom', implying fiah has to alert us about everything he does.