irony :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
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