shebang

Short definition from Wiktionary

Noun

1. 1
   A lean-to or temporary shelter.
2. 2
   A place or building; a store, saloon, or brothel.
3. 3
   Any matter of present concern; thing; or business; most commonly in the phrase "the whole shebang".
4. 4
   A vehicle.
5. 5
   The character string "#!" used at the beginning of a computer file to indicate which interpreter can process the commands in the file, chiefly used in Unix and related operating systems.