Trash

Trash is the thing that all Grouches love most of all in the world. Anything a Grouch likes can be described as anything dirty or dingy or dusty, anything ragged or rotten or rusty or trashy.

While all Grouches express their love for trash, Oscar the Grouch  has shown everybody how much he loves trash repeatedly with his hit song "I Love Trash". on Sesame Street.

Trash is also the one thing that a Grouch would NEVER get rid of. Oscar considered doing so in episode 3815 because his elephant Fluffy  took tap dancing lessons & Oscar 's  trash can  was too full. However, obviously, Oscar couldn't let go of his precious trash. He & Fluffy, however, eventually came to a fair agreement.

Mentioned trash

 * A sneaker that's tattered & worn. It's all full of holes & the laces are torn. Given to Oscar as a newborn baby by his mother.
 * Some newspaper 13 months old with smelly, old fish wrapped inside.
 * A clock that won't work
 * An old telephone
 * A broken umbrella
 * A rusty trombone