Basic Trope: A character who is overweight and dimwitted.
- Straight: Dave is fairly overweight, and also a Book Dumb fool.
- Exaggerated: Dave is morbidly obese, and is also (borderline) mentally retarded.
- Downplayed: Dave is a bit pudgy and has his head in the clouds.
- Justified:
- As a child, Dave was allowed to eat his fill of fatty and sugary foodstuffs, which was not kind to his concentration or waistline.
- Dave is from a rich family who overfed him and didn't see education as important.
- Dave is regularly admonished for his stupidity and/or is himself frustrated by said stupidity. He uses food as a coping mechanism to an unhealthy degree, to the point of significant weight gain.
- Dave was never able to keep a high-paying or physical job due to his incompetence, so his only options for food are cheap and fattening.
- Inverted:
- Dave is stupid, but also very thin (if not underweight).
- Dave is overweight, yet also fairly intelligent.
- Subverted: Dave seems dull, but is really Obfuscating Stupidity — he's actually extremely clever and cultured.
- Double Subverted: But he's still very clueless, because going on a glorious adventure takes him waaaaay out of his depth.
- Parodied:
- Dave starts out as a skinny nerd with a genius intellect, but he gains about 50 pounds (while also losing about 50 IQ points).
- Even merely wearing a fat suit will go to the wearer's head, and cause him or her to take comical pratfalls every three steps.
- Zig Zagged: His idiocy is his defining characteristic, but for every time he gives away the team's plan, Dave gets a Dumbass Has a Point moment.
- Averted: Dave is a Ridiculously Average Guy.
- Enforced: Someone on staff or in the front office has a longstanding childhood grudge against an overweight person.
- Lampshaded:
- Invoked: Because of David's weight and the fact that he doesn't talk much, everyone assumes he's this. Every time he eats, all the other kids make a big deal of it, the same if he makes some sort of mistake. He's actually of fairly average intelligence, but doesn't see much point in correcting anyone.
- Exploited: The Big Bad separates Dave from his smarter friends and extracts the entire plan from him.
- Defied:
- In a moment of lucidity, Dave recognizes how pitiful he really is, and resolves to smarten up and slim down.
- Dave's parents catch him about to gorge on candy for the first time when he's young, immediately separate him from it, and embark him on a childhood of healthy eating and education.
- Discussed: "We shouldn't bring the lardass along. It's only a matter of time before he inadvertently blows our cover."
- Conversed: "You would think writers would have learned that some stereotypes just aren't universally true. There's being overweight, and there's being dumb. They are not identical conditions."
- Deconstructed:
- Dave accidentally kills and partially consumes The Leader of his team.
- Dave is just Too Dumb to Live and is the first casualty of the story.
- The constant criticism of both Dave's weight and his stupidity destroys Dave's mental health, with food being his only source of happiness. It is a vicious cycle, and his problems are considered to be self-inflicted, so he gets No Sympathy from those who know him.
- Reconstructed:
- … and then he blunders into the villain's lair and eats him.
- Dave's early death inspires The Team to go on so that they won't lose their other beloved idiots.
- "We need to return to Fat Idiot, posthaste, unless you trust that guy not to stop for a meal and give everything away.""Give what away? I was just talking to Emperor Evulz, and he asked... where... you guys were..."
