It's horror movie season in the US and my favorite type is zombies. I also love campy B movies. Watching Dead Snow 2 right now and I think it ranks up there with Shawn of the Dead and Evil Dead 3: Army of Darkness.
You like em tongue-in-cheek? You might try Chopping Mall (1986). Shopping mall management invests in a killer robot security system. A group of horny teens decides to spend the night there, but a lightning storm takes out the main killer robot controller! It's funny, a little gory, has topless men and women, and it's hilarious. A spook night favorite of mine.