In the iconic pharmacy scene, Stef demands “une clope.” Standard French: cigarette . The subtitle writes “cigarette,” but the audio says “clope” (slang) with a Flemish accent. The gap produces three layers of comedy:

: It figuratively means a "big mouth," a braggart, or an arrogant "know-it-all".

C’est là que le besoin de prend tout son sens.