This line is widely known from the leaked Christian Bale on-set rant during production of Terminator Salvation in 2009. The outburst spread online as a viral audio clip, and “Oh, good for you” became the most reusable soundbite from it. Over time, creators detached the quote from the longer rant and used it as a standalone reaction for sarcasm, annoyance, and dismissive humor. It still appears in short-form videos, compilations, and meme edits because the meaning is obvious the moment the line is heard.