Ja takk is a common everyday phrase in Norwegian, used for accepting food, drinks, help or any kind offer, and its familiarity is part of why the clip travels well online. Short Scandinavian voice lines are often shared on soundboards as quick reactions because they are understood even by listeners who do not speak the language, thanks to tone and context. This Kjell clip has circulated as a tiny agreeable response rather than a longer quote, so creators reuse it wherever an instant, friendly yes is funnier than an English answer.