You're the world's worst loser.
4 seconds sound clip from the Mister Ed movie soundboard.
You can hear this line at 00:11:52 in the DVD version of the movie.
Quote context
[...]
- Hi, Addison, old boy. How's my favorite pigeon?
- We playing golf again tomorrow?
- I sure loved separating you from that 2 bucks today.
- You're the world's worst loser.
- You should see yourself paying off a bet. Your Adam's apple keeps bobbing up and down.
- That's not true. I know how to lose gracefully.
- Oh? Well, I'll give you another chance to be graceful.
- I'll bet you 2 bucks there's less than 12 lumps of sugar in that bowl.
[...]