hawl: Not a bad question. I like to have terms defined as precisely as possible (O.K., maybe just some terms). In this case, there is no official definition that I have seen. By the way, Men's Health Magazine's "The Book Of Sex" defines "hung" as 6.5 inches or more, using adjectives like "official" and "certifiably". Any comments? Anyway, I think it's generally agreed that a "shower" is fairly close to his full size flaccid, and a "grower' is not. A hung "grower" could still exceed a small or average "shower", i.e. a 9-incher's flaccid 5 could exceed a 5-incher's flaccid 4. However, % of change is a different issue than conspicuousness. A poster once said someone with 5 inches flaccid was a "shower". I think I would tend to agree, not only because that describes me, but because the average erection is usually stated to be less than 6 inches. If you hang at or near the average erect size, you're "showing" something, right?