guy1: did you just pound down that entire box of krispy kremes?  dude: yep, i'm having a cartman day
a 24-hour period in which you indulge yourself in complete gluttony, narcissism and sloth, in the manner of [eric cartman] on [comedy central]'s [south park]
"guy1: did you just pound down that entire box of krispy kremes?  dude: yep, i'm having a cartman day" What is the definition of "cartman day"?