Hey, some guys have this issue, and it’s nothing to be ashamed of, it’s just something that happens.
In the golf world, the equivalent of “not being able to finish”, is the classic “lip out”. When your shot is so close to going in, and literally touches the rim of the hole, but decides to tell you to go f*ck yourself instead. In this case, the tip does not count. It’s one of the worst parts of the game, and I have a inkling that guys can kind of relate to that feeling in bed (lol at whisky dick).
Anyways, here are the worst lip outs the internet has to offer.