1)Self-examination performed after getting into an accident, usually sports-related. Examiner ensures that both testicles and penis are still in proper positions and in working order.
2)Self-examination performed by Jews to ensure they still have their three most prized posessions-their money, their glasses and their genetalia. Often remembered by the diddy "checkbook, spectacles, testacles."
"Dude, I just wiped out bad."
"Did you do a three-point check?"
"Yeah, I passed."
"Oi vay, I just took a nasty fall, better do a three-point check."