Your comment made me think of a reddit post that I can't find anymore. The guy has an abnormally small urethra, so his muscles were working really hard to pee. Eventually he had to get surgery to widen his urethra, but his muscles remained strong due to having had to work so hard normally. So the dude said he was pissing like a firehouse and could easily pee from 6 feet away from a urinal.

Eventually his muscles returned to normal and he lost the ability. But he must have felt like Superman there for a little while.