What is the Yogi Bear Show song first you pick it up then put in?

The song you're thinking of is called "Yogi Bear's Big, Big Show".

The lyrics go:

First you pick it up

Then you put it in

Make it snap, make it crack

Then you start to grin

This is a playful and nonsensical song that is often sung by Yogi Bear in the show. It's a fun and catchy tune that embodies the cartoon's lighthearted nature.