与其偷羊羔被绞死,不如偷只羊;一不做,二不休
(you, etc.) may / might as well be hanged / hung for a sheep as (for) a lamb
与其偷羊羔被绞死,不如偷只羊;一不做,二不休
if you are going to be punished for doing sth wrong, whether it is a big or small thing, you may as well do the big thing
释义来自《牛津高阶英汉双解词典》第 9 版