The meaning is "loser". The word originates from the word "cup" which again gets its meaning from the grade of "U" which signifies a fail grade at IIT Madras. Therefore calling someone a cupper means that the person is a loser.
"What a cupper he is" or "Come on lets go to bruges, don't act like a cupper"
21 กุมภาพันธ์ 2009