what does tough cookie mean
tough cookie (tÊf ËkÊkÉª). ( 1 informal) if you describe someone as a tough cookie, you mean that they are unemotional and are not easily hurt by what people say or do â â  She really is a tough cookie.efinitions. ( 1 informal) if you describe someone as a tough cookie, you mean that they are unemotional and are not easily hurt by what people say or do â â  She really is a tough cookie.