The removal of a male's foreskin at a very late time in his life. Most common late circumcisions occur when a foreign male comes to the US in his teens and wants to be circumsized to fit in with all the other dudes.
Duder: "What's going on man? How was your weekend?"
Foreigner: "Oh man you won't believe this. I got circumsized."
Duder: "Say what!?! Dude you're 14! Didn't that shit hurt?"
Foreigner: "Yea man, you have no idea. It is still killing me."