A round U.S. Army patch that is the insignia of the First Corps Support Command (1st COSCOM) It pictures an arrow that has the general shape of an outhouse. The arrow leans to the 10 P.M. position, meaning the mission is always accomplished before the 11th hour. 1st COSCOM units that are under Airborne Corps command, wear an Airborne tab above the patch. Then, the insignia is referred to as the ''flying leaning shithouse''.
Come on guys, get the arrow right. Jones, yours is too far to the left. Smith, yours is pointing straight up! It's a leaning shit house !
An unlikely occurrance of good fortune/luck; Very Lucky. Derived from Celtic or Scotish folklore when one is out walking in the wilderness or a remote area and happens to come across an outhouse when in dire neeed of defecating;
Shit-House Luck.
That bastard has Shit-House luck, He's got Shit-House luck, It was Shit-House luck to get out of that one, Shit-House luck prevailed, "Shit-House" luck happened that day