Cup your balls and cough

The act of cupping the testicles during a physical with you general practitioner. Mostly used to get a picture of your taint or a finger up your ass when you forget to do the coughing.
Always remember to be alert around the doctor when this is happening they will do anything to get there finger in your ass.

Hey jimmy I need you to cup your balls and cough before I can put my finger in your ass.