Floating Dog, eats Biscuits (Snuffles)

I AM SEARCHING FOR THE NAME OF THE DOG WHO WOULD EAT A BISCUIT, HUG HIMSELF, SAY MMMMMMMMMMMM AND START FLOATING UP INTO THE SKY. I BELEIVE IT WAS IN THE 70'S WHEN IT RAN AND IT WAS A HANNA BARBERRA CARTOON, ANY ANSWERS? THANKS AHEAD OF TIME

That was Snuffles, a dog often shown in Quick Draw McGraw cartoons.

For the record, I think he was also in Snagglepuss once, as well as Super Snooper.

No, Muttley snickered.... but he did not float for biscuits. I think the consensus on the floating, biscuit-eating dog is there are two:

1) Snuffles from Quick Draw McGraw Show 2) Precious Pupp

All other dogs are pretenders!

Note: Precious Pupp has the same snicker as Muttley!