S_B: I think he was also talking about a Grindhouse theater.
A Grindhouse is a movie theater dedicated to showing really violent, over the top and intense B-movies, or "exploitation" films as they were called. It was their specialty and they made for an unique evening at the theater.
The movie "Grindhouse" (which is actually two movies in one) pays homage to those theaters by featuring two full length movies with very cheesy and violent concepts.
To give you an idea of what to expect, the first movie, called "Planet Terror", features a scantily clad heroine...with a machine gun for a leg.
This is why people are saying Overkill is looking a lot like both the movie "Grindhouse" and a Grindhouse film; because its gratuitously violent, bloody and very cheesy, and its well aware of that.
I haven't seen "Grindhouse", but I appreciate a lot the effort.
The house of the dead games were always cheesy, badly acted pieces of gaming, founded on classic B-movie beliefs. Yet, Sega took is very seriously, and tried to present the story akin to Resident Evil.
Overkill looks to change all of that and even if the story is serious to an extend the game will have loads of fun with it, and it guarantees the player will have a roaring good time.
Kudos to Sega and the developers for going down that route.