I quite often refer to people as "giant", tacking it on in front of their name or possibly nickname where the net is concerned, and I've heard the same thing numerous times..

"I'm not so big at all", or something along those lines.

You are huge. You're large and what's more, I don't care if you're the biggest or smallest compared to other humans, because I'm looking at the larger scale of things. To me, every last human is enourmous, oh so big. There is no one quite so small as the unthinking beast, no one so tiny as the ocean creatures that swim around and eat fish who are even physically bigger than you are, you silly wondeful human.

You are colossal. It is amazing that you exist as you do, all mammoth and still managing (most often) to avoid crushing everyone around you with the sheer enormity of yourself.