Gaki no Tsukai ya Arehende! Batsu Game! is a yearly variety show in japan that airs every new year's eve featuring the comedy duo Downtown and CoCoRico. They are given a theme each year (school , detective agency , etc) and must not laugh during a whole day all the while the production team sets them up with traps. Everyone that is caught laughing gets a punishment (usually slaps in the ass with a wooden sword or a nightstick , but sometimes a muay thai fighters kicks the punished)
Well. There's your TL;DR context.