You're a bastard
Mr. Grinch
You really are a heel
You're as cuddly as a cactus
You're as charming as an eel
Mr. Grinch
You're a bad banana
With a greasy black peel

You're a junkie
Mr. Grinch
Your heart's an empty hole
Your brain is full of spiders
You've got garlic in your soul
Mr. Grinch
I wouldn't wanna touch you, with a
Thirty-nine-and-a-half foot pole

You're a screwup
Mr. Grinch
You're a nasty, wasty skunk
Your heart is full of unwashed socks
Your soul is full of gunk
Mr. Grinch

There's three words that best describe you and I quote: "Stink. Stank. Stunk"

Ha ha ha...