The title is a parody of the 1900 song "A Bird in a Gilded Cage" composed by Arthur J. Lamb (lyrics) and Harry Von Tilzer (music) which became one of the most popular songs of the early 20th century, and frequently sung by Tweety Bird in other shorts.
What are you gonna do, puddy tat?
Sylvester: What am I gonna do?
Sylvester: How naive can ya get?
Sylvester: I'll tell you what we'll do. We'll play sandwich.
Tweety: Sandwich? Oh, doody, doody! How do you pway it?
Sylvester: Now, first, you step on this slice of bread. Then I cover you with the other ...