expression
shape up!; act properly!; cut it out!
A stern, often exasperated command telling someone to stop their inappropriate behavior and behave sensibly. Used by parents, teachers, or superiors.
もう遅刻はやめて、いい加減にしなさい。
Stop being late already and shape up!
そんなに泣いてばかりいないで、いい加減にしなさい。
Stop crying all the time and pull yourself together.