a technique used by generations of attendees of Central High School, or almost any Philadelphia public school, where you skillfully use your foot to flush the toilet. Who knows what has been on that handle.
Person A: "Yo, have you ever been to the bathrooms?"
Person B: "They are nasty as shit bro!"
Person A: "I know right?! I don't wanna touch anything in there!"
Person B: "Totally, thats why I use the foot-flush. For some quality no-hand-flushing."