To me, a grower comes in two forms: Length, or girth. And the "golden grower", the messiah of growers and most vaunted, grows in both length AND girth.
What does that mean to me?
Well, a "girth grower" is essentially someone that looks like they have a small, to average at best girth, only to suddenly get hard and then dramatically increase in thickness, revealing a commanding fat, dick well beyond any normal thickness. These are the kind of guys that start at around 3.5 inches of girth when soft, but then balloon to 5.5 to 6 inches or more, of girth. It's like watching a balloon inflate, it's breathtaking.
A length grower is similar. When their soft dick is viewed, it's easily dismissible as nothing special. Small or average. But then, it gets hard. And it gets longer, and longer, and longer, and longer, as it stands at attention, leaving all who view it's glory awestricken with the impressive size before them. These types of growers may have a soft dick size of 2.5-3.5 inches. But then when fully hard, grow to 7 inches or even more.
And then there is the prodigal child, the "golden grower"; this is the most beloved of all growers. This grower has the experience of BOTH, but combined. This grower looks small and unimportant when soft. But when he gets hard, he gets longer, and longer, and fatter, and fatter; it's a spectacle of pure bliss. These types of growers are amazing to behold and should be cherished above all else to anyone that is turned on by the idea of a grower. There is nothing more humbling than having an average, or maybe just slightly above average man, compare his soft dick to a "golden grower", and then watch them both get hard as the golden grower slowly overtakes, and then eclipses the other, dwarfing him in size tenfold once they are both hard.
So what what does it mean to be grower vs. a shower? Growers start small, and then grow dramatically, where as showers, show almost everything, and barely change in size when hard.