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Online Etymology Dictionary claims: "The figurative one-trick pony is 1897, American English, in reference to circus acts." https://www.etymonline.com/word/pon
by Pete_D 7y ago
Online Etymology Dictionary claims: "The figurative one-trick pony is 1897, American English, in reference to circus acts."
https://www.etymonline.com/word/pony#etymonline_v_17634 https://www.etymonline.com/word/pony#etymonline_v_17634