Hello Saieed Gharaati. How are you? Bang out of... refers to getting excitement out of life. Half-Assed, refers to a modest effort. In English one commonly sees references to people doing something, or performing some task, with a less than complete effort, or with less than an enthusiastic effort. Thus it is said; "If you are going to do something Half-Assed, don't do it at all." The older gentlemen in the Salinger story, have a mild excitement or a Half-Assed excitement. ---Warm Regards, Bruce