This short sarcastic laugh has become a familiar reaction sound online, where creators use the exact phrase 'haha, that's very funny' to signal the opposite of amusement. It fits the style of deadpan television and sitcom reactions, in which a character says something polite while their tone makes the mockery obvious. Because the line is short and understandable, it travels between short videos, streams and meme edits, often appearing after a bad joke, a boast or an awkward attempt to be funny. Its lasting appeal is its clarity: listeners hear the words, hear the tone, and understand the joke.