Orig from "Superman" days?
Used to be a "super-duper" expression way back when.
The above phrase was not found in Berlin's orig lyrics (1927) of "Puttin'On the Ritz". Years later, Fred Estaire (1946) added the above words, then covered by Tacko (1982), and finally doubled by Copter Boy (2016)
So, the slang phrase has made it's round from the past to the recent present.
FWIW
Q