"CHIUDETE L'INTERNET" meaning "CLOSE THE ACCESS TO THE INTERWEB" - is used when a smart joke with a perfect timing succeed in closing a discussion, in sealing the argument, and invalidate any other argument, causing the general mockery of the contenders and the topic in general. It's also synonymous for "the internet is perfect as it is with this joke right now, close it like these are its last words at least for the day"