Frick and Frack is for any two people who are closely linked in some way, especially through a work partnership.
The origin is from a famous partnership of Swiss comedy ice skaters, Werner Groebli and Hans Mauch, whose stage names these were. They came to public fame in the later years of a series of skating spectaculars called Ice Follies, promoted by Eddie Shipstad and his brother Roy, which began in 1936 and ran for almost 50 years. Their association lasted so long, and they were at one time so well known, that their names have gone into the language.
Michael Mauch, the son of Hans, told me in a personal message about the origin of their names: “Frick took his name from a small village in Switzerland; Frack is a Swiss-German word for a frock coat, which my father used to wear in the early days of their skating act. They put the words together as a typical Swiss joke.”
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