I am 6'5" 300 , and my wife and I were watching "King of Queens" (on CBS) and called himself Fatty McButterpants and I just about died I thought it was so funny. I wish I could say I made it up , but Alas I didnt...I just stole it and made it mine!!
I also love food (foodie) so what better name than Fatty McButterpants

Other names that didnt make par:
1 Tubby O'Bacon
2 Gravy LaBelly
3 Eattie Von Burrito
4 Porky D. Jellybutt
5 Husky McMargarine