From Wiktionary, the free dictionary
price of eggs (uncountable)
- (idiomatic) Something trivial or irrelevant, usually used to emphasize the lack of relationship of a non sequitur.
- 2002, Sharon Elizabeth Doyle, "The Mother Hunt, Part 1", episode of A Nero Wolfe Mystery (teleplay).
- "What has that got to do with the price of eggs in Reykjavik?"
2007, Barry Head, Swansong: A Message of Love and Farewell:"As to what all that has to do with the price of eggs, as they say, I'm not sure, which is why I called for a detour."
2012, Walter R. Borneman, The Admirals: Nimitz, Halsey, Leahy, and King:"And besides, the question had "nothing to do with the 'price of eggs'."
