Sonnerie lycée refers to the bell system used in French secondary schools for older pupils, where a repeated electronic ring marks lesson changes throughout the day. The recording has circulated on soundboards as a short, recognisable school cue detached from any single school or recording. Online, creators reuse it whenever a scene needs an unmistakable classroom signal without dialogue or explanation. Its popularity comes from that instant recognition across French-speaking audiences and from its usefulness as a clean transition sound in skits, edits and everyday school-themed memes.