Although it’s probably not among the top 10 elements for a successful farce, the awkward presence of a corpse has proved comic gold in such plays as Joseph Kesselring’s Arsenic and Old Lace and Joe Orton’s Loot. The first few moments of Messy White Gays suggest that playwright Drew Droege may have tapped into the vein as well. In darkness, a crash of breaking glass is heard, and the lights come up suddenly on two young men standing over a body. The corpse is Monty, the third in their throuple. But what ensues is more a nightmare of bad behavior than a comic soufflé.