He laughed so hard that he laughed himself right out of his nest. He laughed right down the side of that mountain.
9 seconds sound clip from the Rudolph's Shiny New Year movie soundboard.
You can hear this line at 00:45:49 in the Blu-ray version of the movie.
Quote context
[...]
- I have an idea, Happy. Take off your hat. Quick! Take it off for good.
- Huh? Huh? Those ears... Those ears... Those ears... Those ears! Those ears!
- Well, it's the first time that monstrosity ever laughed in his life.
- And then he laughed O.M., 1023, and Sev free from their snowballs.
- Well, to put it bluntly... He laughed himself silly.
- Old Eon won't give us any trouble now. He's cured for good.
- Heck, nobody can turn to snow and ice when he's all warmed up inside with laughing.
- Midnight. Even though we found Happy, we're too late.
[...]