AN UNBIASED VIEW OF TOON ME A RIDDLE

Q: Without having me Thanksgiving and xmas are incomplete, when I’m about the table everyone has a tendency to overeat. What am I?138. I are available a variety of colours And that i get more substantial Once i’m whole. I'll float absent if you don’t tie me down And that i will make a loud audio if I split. What am I?Then he went to the still