This word is used to describe a person who falls into the uncool category of life. The reason for them being called a randomn, is because they are all alike. Example: Burgess, is incredibly uncool. He has very few friends and even the ones he has are lame. His life revolves around computer games. Hence, he is simply a randomn.
RANDOMN
Meaning of RANDOMN in English
Slang English vocab. Английский сленговый словарь. 2012