Outhouses are where you respawn upon being killed in DeathSpank. It is currently unknown how he is able to respawn in these storywise; it's possible that this little edifice conceals a portal of some kind. There are 30 teleporting Outhouses in DeathSpank: Orphans of Justice and 44 in Thongs of Virtue, and three achievements/trophis tied to them:
Orphans of Justice:
- Can't Kill me....: Respawn at an outhouse, worth 5 Gamerscore on 360 or Bronze on PS3
- Underground Subway: Discover all 30 teleporting outhouses, worth 15 Gamerscore on 360 or Bronze on PS3
Thongs of Virtue:
- Mystic Transport: Discover all 44 teleporting outhouses, worth 15 Gamerscore on 360 or Bronze on PS3