In cartoons, a character is easily inflated with a bicycle pump so that his muscles fill out, until he gets so big that he pops. Ever wonder what that looks like in real life?
muscle morph" a YouTube genre where users take pictures and fill the guys' bodies out so that they're bigger and beefier than before. Usually it involves a 98-pound weakling turned into a muscle god, or someone who already looks like a body builder turned into something that looks like a radioactive accident...on steroids.
Anyway, like anything on YouTube (or in men's trousers) they vary in length and quality. Some are convincing portraits of what the guy would look like with a few more hours in the gym and others look like, well, 10 year olds playing with CGI. Yeah, these can't be good for our body image issues, but they sure are fun to watch!