When "bros" go investigating. Stemming from "Ghost Hunters" on the Travel Channel, during which the hunters say "bro" about 20 times per episode. A combination of "bro" and "investigate."
"Bro, bro, I think I just saw something over there, bro. I'm going to inbrostigate the situation."
I am an inbrostigator. If there's a ghost, I'm inbrostigating it.