The Drill is a fisting technique created in Okinawa, Japan. It involves thrusting your hand vigorously through the other hand in a rotating motion. The Drill can be variated, and over 300 variations have been made. The Drill can be an allusion to any form of sexual intercourse.
"Dude! You know she wants to start The Drill!"
"I wouldn't. That's been drilled to death...no more oil left in there."