Oops, the XXX above was meant to be replaced by "Cash Box," obviously.   What I get for not proof-reading...

Credit to Chris Setari on the Facebook discussion on this song, though, who discovered the answer late last night. (link)

The song is THE GOONIE-BIRD SONG by FRANK LUTHER. Written by George Kleinsinger and Joe Darion from 1951 (link)

listen