a Nathan Collins

A Nathan Collins is the act of cumming as a girl breathes in your direction, from as close as a mile away.
It can also be used as the name for someone this happens to.

"Holy fuck dude, I messed up in maths, Jennifer glanced at me and I came all down my leg, I'm such a Nathan Collins."

"Man, I really pulled a Nathan Collins this morning, a girl was sat behind me in class, as she breathed on me, I projectile came right through my trousers, onto my desk."