Fans Share Hilarious Things About 'The Grim Adventures of Billy & Mandy'
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The Grim Adventures of Billy & Mandy originally aired on Cartoon Network back in 2001 and has since grown to become one of the most beloved cartoons of our generation.
Fans have not gotten over Billy's dimwitted antics and Mandy's remorseless and cynical nature, and are sharing hilarious observations that we never thought about before.
