"You're a Mean One, Mr. Cow" is a song sung in the Season 2 episode, "Valentine's Day: Part 3 ". The song centers around Cow fantasizing about wanting to take down the Valentine's Day decorations to express his hate for the occasion. It is an obvious parody of the beloved song, "You're a Mean One, Mr. Grinch" from How the Grinch Stole Christmas.
You're a Mean One, Mr. Cow!
You are a sneaky Pete.
You'll set a lot of traps,
and take down all the lovey crap,
You're a stuffed, brown, fuzzy lump of poo,
With a lot of gas!