A dwelling of rather low quality standards but yet has the basic essentials for any mid 20's bachelor consisting of a front porch, a living/bedroom, a mildly used bathroom, and refrigerator consisting of more beer than any other sort of nourishment. Often times these are trailers that serve only the bare needs of the bachelor to include a place to sleep and a place on the GPS to call home.
Friend 1: "Hey man. What am i going to do? My girlfriend just broke up with me."
Friend 2: "It's ok. Come over to the man shack. At least your life doesn't look any worse than this place."