Source : CEDICT

don't do it, or don't rest (idiom); either give up, or go through to the end/Since we started, we must carry it through whatever happens./in for a penny, in for a pound

Source : CEDICT

don't do it, or don't rest (idiom); either give up, or go through to the end/Since we started, we must carry it through whatever happens./in for a penny, in for a pound