abbreviation  Internet slang  derogatory  noun  noun (generic)  noun (suffix) 

• (Internet) troll, nerd, freak, addict, fag

gikun or jukujikun  Internet slang  noun (prefix)  noun (generic)  な adjective  adjective (generic) 

• incredible, fantastic, amazing

colloquial  computing  noun  noun (generic)  Internet slang  jocular, humorous term  interjection 

• null pointer exception (runtime exception in Java)
• nurupo

Internet slang  expression 

• LOL, haha

Internet slang  expression 

• LMAO, ROFL, ROFLMAO, hahahaha

Internet slang  abbreviation  noun  noun (generic) 

• user name (on an online forum like 2ch where the majority of users post anonymously)
• user who uses an online handle (instead of posting anonymously), namefag

noun  noun (generic)  Internet slang 

• sock puppet (hand puppet made from a stocking or sock)
• sock puppet (online pseudonym account used for deception)

Internet slang  noun taking the genitive case particle の  adjective (generic)  noun  noun (generic) 

• off-topic (on an online thread)

abbreviation  Internet slang  noun  noun (generic) 

• topic (on an Internet forum, Q&A website, etc.), thread

Internet slang  jocular, humorous term  interjection 

• I strongly agree