The Ballad of Adler Young, Canto 2.5

I'm imagining him getting very excited like the tex avery weasel in one of the foghorn leghorn cartoon.

SIDENOTE: While Tex Avery did indeed do a weasel-based cartoon ("The Sneezing Weasel," with some great Irv Spence animation), and one he voiced himself, I think you're thinking of some of Bob McKimson's cartoons from about 20 years later, like "Weasel While You Work," "Weasel Stop" and "Plop Goes the Weasel." If you're thinking of a slobbering little buck-toothed critter.