kazoom exclamation 1noun 1forms 1 exclamation1 •An abrupt or explosive zooming noise; the sound of something powerfully speeding by.Zap is a comic-book hero - Zap! Powie! Kazoom!; why have you retired, Zap, when we need you so much? — 1975 noun[in the plural]1 •(slang) A (large) female breast.The clasp slips free (gad, what lush kazooms) and she even helps him pull off the blouse that is now cuffing her at the elbows. — 1987 formskazooms