Classic drinking "sport"

PONG

This party game involves bouncing a small ball into cups of beer, often played on a long table with teams. It’s a staple at college gatherings and requires quick reflexes.

"Classic drinking 'sport'" hints at a game often played at parties where players bounce ping pong balls into cups of beer. The word "sport" is in quotes because it’s more of a casual game than a real athletic competition. "Pong" is short for "beer pong," the well-known drinking game, making it the straightforward answer.