look up any word, like dirty sanchez:
 
3.
Term that describes a person who browses 4chan but has a normal life (has social life/works/attends college). Mainly used in a derogatory manner by jealous neckbeards.
Normalfag: My gf and I are going out tonight.

Neckbeard: Fucking normalfag, ruining my /b/.
by ujelly? July 26, 2010
 
1.
A derogatory term used to insult the antithesis of most internet dwellers. Normalfags are typically people who enjoy mainstream things and live typical, ignorant, mundane lives. Some of the most common normalfag traits are ignorance to internet culture and underground media such as less well known music, anime, or video games. Additionally, they often and vehemently reject obscure sub-cultures, fetishes, life styles, and anything they simply do not understand and like. Lastly, normalfags are known to have or desire a normal social life. There are four primary uses for the word. The first is to insult a persons ignorance while simultaneously calling them out on their shallow and banal personality. The second is to insult the pathetic appearance of a person who complains that they want but do not have a normal lifestyle. The third is for the most part a petty stab at a person for having a social life and/or girlfriend. Lastly, the first and third example can overlap if the alleged normalfag is trolling or generally being an ass by flaunting their social life.
Good uses:

Guy 1: "Are you listening to that hipster bullshit again? Listen to some real music!"
Guy 2: "Shut up, normalfag."

Guy 1: "That feel when no girlfriend."
Guy 2: "Stop making off topic threads you pathetic normalfag."

Guy 1: "Do you wish you had a girlfriend, looser?"
Guy 2: "No I don't, normalfag."

Bad use:

Guy 1: "My friend and I watched *insert obscure anime* together and liked it."
Guy 2: "Friend? Stupid normalfag!"
by Deschain July 24, 2012
 
2.
A term that describes a person who is insecure and shuns someone's lifestyle that differs from their own. Usually getting upset if someone is enjoying a harmless hobby that they don't like.

Likely to be found on imageboards that rely on anonymity.
Guy 1: I just got home from work, anybody want to play vidya?

Guy 2: Video Games? What are you 12? Get a life you nerd. How about you do what i want you to do?

Guy 3: Piss off normalfag
by Do you even lift? August 13, 2012
 
4.
Not necessarily a normal person, but someone who ignorantly bashes an abnormal lifestyle, belief, etc. just because it deviates from the norm.
John's normalfag friend made fun of him for having a waifu.
by fiscrest June 01, 2014