malarkey – Wiktionary

American English, of unknown origin; perhaps from Greek μαλακία (malakía, “ stupidity, idiocy, nonsense, bullshit ”, literally “ masturbation ”). Popularized by Thomas Aloysius Dorgan, Irish American cartoonist who started using it in cartoons on March 9, 1922. Pronunciation [ edit ]

https://en.wiktionary.org/wiki/malarkey