bippy
noun used as a jocular euphemism for 'ass'. Coined and popularised by Rowan and Martin on the television programme
Laugh-In (NBC,1968–73); a wildly popular word for several years, the key word in the title of the 1969 Rowan and Martin film
The Maltese Bippy, and then abandoned on the junk heap of slang
US, 1967