a large friend who has the characteristics or qualities of being a fat person, is liked by many, has many features that make him (in some cases her) able to be funny like a fat person; fat friend who is wider than they are tall
Friend: Dude youre such a tommy-chode
Other Friend: Prolly so dude but you love me for my belly
Friend: Come here my big sweaty hairy tommy-chode
Other Friend: Uh huh huh huh