usually referring to a kunal, a Kerpy is "that guy" in the group. usually brings out all of the worst calls/comebacks you have ever heard. A Kerpy is always on the hunt for friends, but fails miserably at life. likes to play FIFA, thinks he can play FIFA, but cant! this is becasue he butchers every shot there is to take. A kerpy in FIFA is someone who cant play.
Person 1: "ohhh look at that guy!!! what a Kerpy"
Person 2: "lol"
Person 1: "oi dont give that kerpy the ball!! he'll lose us the game!"
Person 2: "i know, how bad is he?!!!"