boomps-a-daisy!
used as a childish catchphrase or light-hearted response to trivialise a minor physical accident. Blending WHOOPS-A-DAISY! with 'bump'. 'Hands, Knees and Boomps-a-Daisy!' was a popular song and 'The Boomps-a-Daisy' a popular dance in the 1930s
UK, 1961