A term used to describe a moment where a user (or any group of people) watches nothing but Smosh™ Productions videos on youtube, or any videos associated with Smosh as well.
Girl 1: "OMG I'm gonna go throw a Smoshfest at my house! Wanna come?"
Girl 2: Sure! Ian is so cute!"
Guy 1: "Uggh, what's with girls and boys with bowl haircuts?"
Guy 2: "Dont know, but let's throw a Smoshfest at our house!"
A fat metal man who when is paired up with his metal lion fuck buddy Ornstein, will absolutely fucking obliterate your young virgin ass hole with his mighty hammer and stunning tits