とぶとりもおとすいきおい
great vigor; tremendous energy; forceful enough to knock down birds in flight
Expression
彼かれ、今いまのところは飛とぶ鳥とりも落おとす勢いきおいだけれど、あの威勢いせいいつまでもつのか、疑問ぎもんだね。
He's unstoppable right now but the question is how long he can remain at the pinnacle of his career.