The word "malarky" is defined as nonsense, foolishness, or deceitful talk. It originated in the early 20th century as a euphemism for "bullshit" and was popularized by President Joe Biden in his 2020 presidential campaign to describe misleading political rhetoric. Malarky is considered a lighthearted or playful way to call out something as untrue or insincere.

6. ma·lar·key