sarcasm, irony, satire, caustic remark -- (witty language used to convey insults or scorn; "he used sarcasm to upset his opponent"; "irony is wasted on the stupid"; "Satire is a sort of glass, wherein beholders do generally discover everybody's face but their own"--Jonathan Swift)
irony -- (incongruity between what might be expected and what actually occurs; "the irony of Ireland's copying the nation she most hated")
irony -- (a trope that involves incongruity between what is expected and what occurs)
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