Oh Christ where do I start? My whole childhood was variations of this theme.
When I was very young, I soon realised I was the only person I knew at my school (primary or elementary school) with a foreskin. And for while it wasn't necessarily bad for me, just 'different'. I compared myself to my friends and wondered why I wasn't like them. I've written this before I'm sure but my mother explained to me that when the foreskin couldn't retract enough to pee, it had be removed. And even then, I thought, 'Surely not EVERYONE has had this foreskin/pee problem.."
Anyway - at some point, the natural curiosity changed and the kids became more tribal. This would have been around age 9 or 10. Then I started getting bullied by the other kids. They'd walk behind me and chant 'Skin, Skin , Skin" which mortified me, especially when the girls didn't know what that meant, and I think, even after having it explained to them, circumcision was such a standard thing they still didn't quite understand why I was getting singled out.
But kids being kids, the girls joined in with the chanting too.
At about age 11, there was a period in my life when a group of boys who I didn't know (but who'd heard about me) would just grab me, hold me against a wall (out of sight of the teachers of course) and pull my pants down. A whole group of kids, girls included, would be there, laughing and pointing at me.
One of these girls, who was laughing along with the rest of them once, was the only one who came up to me and asked me "Doesn't it hurt?". But what are supposed to say when you're 11 years old?
I moved states shortly after this and from that point on, much of the talk was general "Ewww, how gross" stuff I'd overhear from groups of girls who discovering teenage magazines with sealed 'advice' sections. I never let anyone know of my status at high school, so I just went along with everyone else, agreeing that it WAS gross.
It's tough though, when just about every reference you'd see to penises always featured circumcised ones.