A Danago is when you have sex with a girl while having a man, usually black, shoot you in the leg. The gun is usually a .9 MM pistol. The man who is doing the girl wears a top hat and a beard resembling Abraham Lincoln so when the guy says "Who's your daddy?" the girl screams "ABRAHAM LINCOLN!"
Mark was giving it to Chris's mom Danago style when Derek shot him in the leg, although he was not black it was effective. Mark obviously screamed and so did Chris's mom, Shaniqua, but she screamed "ABRAHAM LINCOLN!!"