Hello please help!

I remember this old cartoon movie from when I was a kid that had these bad guy weasels (or what looked like weasels). The only scene I remember is the 2 weasels singing a song and eating snacks from a bag that looked like tiny balls of meat. They get fat by the end of the song. The movie itself may or may not be about dogs. Or some kind of woodland mammals like wolves or foxes.

This is driving absolutely insane and I wish I remember literally anything else about this movie.