It means that you got it right. Or you "nailed" the job. So you got the job. Or you figured out the problem. It is the same thing as " nailing it right on the head". Or if someone asked "How did you put that picture on the wall". Your answer might be "I nailed it".
Give Somebody a Cold Shoulder meaning: to behave towards someone in a way
that is not at all friendly, sometimes for reasons
that this person does not understand
لا تغـرك الدنيا وتصبح عديم أحساسـ..
لا تحـس يوم أنك أصبحت فوق الناسـ..