the use of a word or phrase contrary to its normal meaning for ironic or humorous effect A mere babe of 60 years
The ironic or humorous use of words in a sense not in accord with their literal meaning, as in "a giant of three feet four inches " (Compare Burlesque, Hudibrastic Verse, Parody, Satire)
The use of words in a sense opposite to their proper meaning; as when a court of justice is called a court of vengeance