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7.
South Park when Stan, Kenny, Kyle, and Eric played world of warcraft.
A big fat no life sitting on their ass doing something online instead of going outside like "U" and "Me"... but mostly "U"
by F10 for Porn November 09, 2008
 
1.
The most commonly used insult on the internet used by 12 years/idiots even though they have no absolutely no knowledge of what that person does with their time.
12 year old: LOL look at this funny new video tat i found on youtube!!!1!
18 year old: been posted already
12 year old: LOL loser u must have no life if all u do all day is watch these vids LUL
by Ziggy Meh August 05, 2009
 
2.
To reject your 1st life and substitute a new one.
guy1: Dude where's Jeff
guy2: He's playing that online game!
guy1: GOOD LORD!, he's played it for two weeks now,an he has no life!
by somguy December 21, 2006
 
3.
Somebody with no life is one that doesn't value their own time, and so will spend it in ways that even they feel or know are a waste of their time (although they may not admit it).

As different people enjoy different things and priorities vary by person, this is often used (by people who disagree with what is or isn't a good use of time) to judge and insult people who are actually happy with the way they spend their time.

Alternatively, it could refer to somebody who is very dedicated to something (especially something frivolous or negative), at the cost of most anything else.
1: LOL U LIKE THAT? OMG LOSER FAGET GET A LIFE

1 (translated): Wow, I can't believe you spend all your time doing something you enjoy that I don't, you must have no life.

2: Yet you have nothing better to do than judge people like a prick. It's ironic that you sound so full of yourself, since it makes it seem like you think making fun of somebody's hobbies means you have a life.

3: Are you two seriously arguing over who does or doesn't have a life? Both of you need a life!

4: Time is one of life's most precious resources. Do not squander it by having no life, or by listening to those that say you have none.

5. Unless you're hurting people with what you're doing. In that case, get a life.
by Aeroxima November 16, 2009
 
4.
the thing that all the people that added the word "urban dictionary" have.
Oh my goth, I'm the 453464538468569th person to add urban dictionary as a word. I don't have no life.
by No life goon May 03, 2009
 
5.
Someone who has none or very little (social) life outside of the internet and/or video games.
"Marcia doesn't have any friends irl. She's a total no-life."
by Davidzi October 11, 2007
 
6.
A verb that is used to describe the utter commitment to an activity performed by someone until the activity is completed (as if the person performing the activity has "no life" going on besides the activity at the time the activity is being performed).
Susan: "Hey, Timmy, what are you doing?"
Timmy: "Can't talk. I have to nolife a book for school tomorrow."
Susan: "Oh, okay. Bye then"
by eyelids September 19, 2006