This is the build of a really skinny nerdy guy who sat in his gaming chair all day. When you look at his ribcage it looks like he's just destinied to be small and underweight, I can't imagine him bulking up much because that would require a massive lifestyle change for his metabolism and fat distribution. His hips look wide because his waist is thin and all of the fat goes to his ass.
I'm sure some of you can think of a relevant illustration or comedy character because this really is a common type. Alternatively imagine an office worker loser guy, balding with a mustache and the skinny fat build.
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