bippy

BIPPY - A jocular euphemism for ass, as in "bet your (sweet) bippy) by Rowan & Martin's Laugh-In, an NBC-TV comedy series, 1968-1973. From "Random House Historical Dictionary of American Slang, Volume 1, A-G" by J.E. Lighter, Random House, New York, 1994.

> You bet your sweet bippy