You have no idea how happy it makes me to see a piece about Mike Will Made It on the frontpage of HN of all places.<p>Not only is he a Hip Hop producer (producers normally stay in the background), but he's a part of the ATL Trap movement which I wouldn't have expected anyone on HN to be tuned into.
I don't think the phrase "trap house" has to do with exits. I believe it is just a reference to "trap", which I think refers to the drug business as a sort of trap. And after all, a trap house should probably have another exit for a quick escape.