When someone is so badass
, other badasses call him "Sir" or some other deferential honorific, admitting that this one stands above the rest.
- From The Undertaker: "When I come callin', the devil still answers with 'sir'."
- Halo - the protaganist is called Master Chief. Of course, that's his official rank and title. When he is in a group of marines, all of them refer to him as "Sir"