Because it's time to get Cereal!
Matt and Trey should create a cereal called Manbearpig.
He’s super cereal
I wasunder the impression he said 'serial' not 'cereal'
Are you cerial right now cartman brahhh
Super
You’re not really super cerial
Since episode 6 and 7 this season are called "Time to Get Cereal" and "Nobody Got Cereal", I don't think you're being cereal at all!