[Thoro]

Isn't "Excelsior!" one of Stan Lee's trademarks? Not sure if it's a reference to him or not though.

[Calvin Locke]

"Excelsior, you fathead!" was a saying of Jean Shepherd (aka the guy the wrote and narrated "A Christmas Story") when he
was on the radio at WOR in New York. Alas, he's dead. I've only heard rebroadcasts on shortwave, but I've heard it on shows from 1960.

Excelsior is also the motto of New York State.

Oh, the response to "Excelsior, you fathead!" is "Seltzer bottle".
Don't ask me why. Find somebody that actually listened to him live.

Oh, I almost forgot: "Flick Lives!"