To be in a dreamy, dazed, or absent-minded state; to be leisurely and listless.
他整天悠悠忽忽的，不知道在想些什么。
He drifts through the day in a daze, nobody knows what he's thinking about.
Next Idiom
To be in a dreamy, dazed, or absent-minded state; to be leisurely and listless.