When a young unmarried man with no children refers to himself as "Daddy" with his friends or potential love interests to make himself seem cooler, wiser, and more authoritative. Used largely by men in their early to mid-20s.
Someone at any sporting event who always has to call the fouls, say the ref is wrong, or something similar even though nobody really listens to them and they don't have any idea what they are talking about. They think the ref is wrong about everything even though he gets paid to do it.
Soccer Mom-Oh, come on, that was such a foul!
Annoyed Observer-SHUT UP YOU SELF QUALIFIEDREFEREE!!!