a person who's lastr name is sing and ends with the word danger. the word danger is their to imply that the person is , or thinks they are extreamly tough and macho. for some people this is hard and the end up with their name just sounding stupid with the word danger on the end.
This can be applied to anyone with a last name.
wow bozdanger, would you look over there!!!
gee, is that crankysingdanger, he's so tough.
yeh, lets go and say hi to him or he'l beat us sensless.