expression
humming and hawing; shilly-shallying; at a loss
Describes the state of being unable to decide or articulate what one wants, often going back and forth between vague alternatives. Used when someone is indecisive or fumbling for words.
彼は何が食べたいのか、ああでもないこうでもないと言っている。
He's humming and hawing about what he wants to eat.
会議でああでもないこうでもないと意見がまとまらなかった。
At the meeting, opinions went back and forth and couldn't be settled.