The phrase itself is common everyday French slang, stronger than saying you are not interested and closer to swearing that you do not care. Clips of short spoken reactions like this spread through soundboards, group chats and short video edits because they are easy to reuse out of context. This one stays popular for its brevity, since a single second is enough to answer almost any situation. Its exact recording source is not documented, so its life online is defined by remixes, reposts and reaction use rather than a known scene or performer.