irony

(noun) witty language used to convey insults or scorn. Synonyms: sarcasm, satire, caustic remark. Examples: "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."

(noun) incongruity between what might be expected and what actually occurs. Example: "The irony of ireland's copying the nation she most hated."

(noun) a trope that involves incongruity between what is expected and what occurs.