"carusoing": what the hell is it?

[Douglas G. Wilson]

>    Wischnewetzky declared he was "crusading against Carusoing."

This must be the right sense: "Carusoing" = "frottage", "groping", or
something similar.

There existed another sense also: "Carusoing" = "singing loudly" (I guess):

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_T. Haviland Hicks Senior_ by J. Raymond Elderdice (1916): p. 91 (online):

<<Just as T. Haviland Hicks, Jr., strumming the banjo blithely and
Carusoing with glee, reached the end of the corridor and executed a brisk
'bout-face he heard a terrific commotion on the stairway, ....>> [a posse
is coming, to stop his singing]

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... but it doesn't exactly fit George Thompson's item where it appears that
there were "vocal" and other [presumably non-vocal] "stunts".

I wonder what the performers were doing exactly ... perhaps (or perhaps
not) something very mild and decorous by modern Superbowl standards.

-- Doug Wilson