Popularized by the assassination of Osama bin Laden by the Navy SEAL Team Six, otherwise known as "Operation Geronimo." When Osama bin Laden had been successfully assassinated, the code-word "geronimo" was given to President Barack Obama, who was monitoring the operation in real-time in Washington D.C., to confirm mission success.
White guy: "Did you have intercourse with that pulchritudinous female last night?"
Black guy: "Yea nigga, tapped that shit. Geronimo."