An Australian slang term.
A dag is technically the matted wool on a sheeps tail, but in typical useage throughout Australia, it refers to people who don't have a neat, tidy or cultured appearance. It can also refer to a person who tends to be quite informal.
It is not necessarily a derogatory term in modern useage.
It can also refer to a Person who is a bit zany in antics in a loveable way
I'm a bit of a dag today, I'm wearing my trackie-daks
the most ultimate "cool" word. comes from Australia, where it means an amusing, funny, odd person. Translated to mean "cool" in Portland, OR. (i.e. one of the oddest, and funniest, cities in the United States) USE IT NUCCA