The wavy sound of a saw has been used as a type of musical accompaniment for centuries. Bluto is shown doing that while he serenades Olive Oyl.
Despite the humor shown in this short, a good cook was a necessity for the successful operation of a lumber camp. Lumberjacks used an incredible amount of energy in the days before modern machinery, and required hearty, calorie rich meals to be cooked up regularly.
Bluto is seen carving a portrait of a comely female in the tree he's supposed to be chopping down.