It was a bizarre happening, an unprecedented situation, a grotesque situation, an almost unbelievable mischance.

Originally used at a press conference in 1982 to refer to an incident in which a wanted murderer was arrested in the house of the Attorney-General, but subsequently turned into "Grotesque, unbelievable, bizarre, unprecedented" and made a catchphrase. Sometimes rendered into the acronym "GUBU". Also see "'Era-defining scandal': Ireland revisits 'Gubu' murders 40 years on" The Guardian (8 November 2022)