The Grim Adventures of Billy & Mandy

The Grim Adventures of Billy & Mandy is an American animationseries which aired on Cartoon Network. The series premiered on August 24, 2001.

You know what's funny?
When Billy's hamster kicks the bucket, he and mean-spirited Mandy enter into a limbo contest with The Grim Reaper to win him back. You know what's funnier than that? They actually win the contest and demand that Grim now become their best friend! And you know what's even funnier than that? He does!

And thus, the grim adventures attributed in the title are born. Yup, you got to see it to believe it. And then, maybe call someone and have them explain it to you. Comedy is a process.