All of the other reindeer used to laugh and call him names, they never let poor Rudolph join in any reindeer games.
14 seconds sound clip from the Rudolph's Shiny New Year movie soundboard.
You can hear this line at 00:43:12 in the Blu-ray version of the movie.
Quote context
[...]
- Well, Rudolph was too modest to tell his own story.
- And so all the trees on the old mountain, and the snowflakes... Why, they just helped him out.
- You know Dasher, and Dancer, and Prancer, and Vixen, Comet, and Cupid, and Donner, and Blitzen.
- But do you recall the most famous reindeer of all?
- And heck, you know, with those ears... Why, you're going to be the-the happiest New Year ever!
[...]