Definitions by Rasto
cupper
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.
chillam
A superlative of chillax. Combination of "chillax" and "aaram". Aaram here means to take a rest or to chill out.