No, boss. You're nothing but a basket case.
2 seconds sound clip from the The Adventures of Elmo in Grouchland movie soundboard.
You can hear this line at 01:02:31.598 in the Blu-ray version of the movie.
Quote context
[...]
- They may save you, you annoying red monster, but they can't save your wooby!
- No, no, no! That's not a wooby! That's Elmo's blanket!
- Wait, wait, wait a minute. Wait, wait, wait! Where's Elmo's blanket?
- No, boss. You're nothing but a basket case.
- What?
- This blanket belongs to Elmo.
- Blanket.
- Bug... Bug, how could you do this to me? I thought we were friends.
- No, you're a greedy, selfish villain, and nobody likes to be friends with a greedy, selfish villain.
[...]