What does the slang word "malarkey" mean?

The slang word malarkey means nonsense, foolish talk, lies, bunk, or exaggerated and untrue statements, used to dismiss something as untrue or silly. It is informal American English slang, also spelled malarky, pronounced ma-LAR-key, and is considered mild, humorous, and not a swear word, so it is acceptable in polite conversation, media, and politics. For example, if someone says that's a bunch of malarkey, they mean that's complete nonsense or that's not true. If someone says you're full of malarkey, they mean you're lying or talking foolishly. Malarkey can refer to both spoken nonsense and deceptive behavior, similar to baloney, hogwash, bunk, or bull. The word first appeared in American English around 1922, popularized by cartoonist Thomas Aloysius Dorgan, known as Tad Dorgan, and is believed to come from the Irish surname Mullarkey associated with tall tales and blarney in Irish-American communities. It became widely used in vaudeville, radio, and everyday speech by the 1930s. In recent years it was popularized by President Joe Biden who frequently says that's malarkey. Malarkey is often used to call out political spin, excuses, or exaggerated stories without using profanity. So malarkey means nonsense or lies, used as a colorful, non-offensive way to say that's not true or that's foolish talk.