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8.
Someone who doesn't do drugs, or drink. Others should not care whether someone is straight edge in this sense.
"Want to get blazed after school?"
"No, I'm straightedge."
"Ok, thats cool."
by Dragonslayer1318 September 19, 2005
 
9.
Movement started in 1981 by D.C. Hardcore band, Minor Threat. Drawn from the two songs "Out of Step" and "Straightedge", in which in the former, they emphasize the values of "Don't drink! Don't smoke! Don't fuck!" which means no drugs, alcohol, or promiscuous sex. The movement grew in the hardcore scene as it stood at the time as a stark contrast to the drug and beer-heavy punk 'scenes' of the time. It is still kept on today, although a militaristic and violent branch of straightedge known as 'hardliner' has become more prevalent in some circles, in addition to straightedge's marriage to veganism in others. There are still many out there that believe in real straightedge though, regardless if there're 'x's on their hands or not. It has also been looked down upon by many people as another brand of conformity nowadays.
"I've got the straightedge!"
by God. October 04, 2005
 
10.
A ruler, or something that can be used to draw straight lines.
"Does anyone have a straightedge? I need to do my Geometry homework."
 
11.
Ideals invented by Ian MacKaye. Primarily focuses on maintaining a pure body and conscience by abstaining from drugs and alcohol. Promotes monogomous relationships (not mariage) and a vegetarian diet (although this is not essential). Ian MacKaye went so far as to shave his head but no one does this as a sign of their devotion anymore. Early straight-edgers could be identified by 'X's tattoed into their hands.
Straight-edge used to mean something. Now you see kids who shop at Hot Topic using Sharpies to draw 'X's on their hands.
by Roy K July 13, 2005
 
12.
The principle "don't drink, don't smoke, don't fuck" which came to be in the late 80s by Ian MacKaye and the band Minor Threat.
Most straightedge kids nowadays flaunt the fact that they're straightedge by drawing X's on their hands, wearing clothing that says "Drug Free" or "XXX" or "Poison Free", because for some reason they feel the need to let everyone know they're drug free.
Some (but not all) straightedge kids are sXe because they feel the need to fit in to a group, and they can do so by avoiding toxins.
Straightedge is not to be confused with hardline kids, who are a violent version of straightedge and kick the asses of smokers and drug doers, because for some reason they believe people should not make their own choices.
Straightedge kid: I'VE GOT THE STRAIGHTEDGE! I'm a person just like you, but i've got better things to do than sit around and fuck my head; hang around with the living dead! Snort white shit up my nose, pass out at shows! I don't even think about speed that's just something I don't need! I've got the straightedge!
Kid 2: Um...calm down. I don't need your beliefs shoved down my throat, thanks
Straightedge Kid: I'VE GOT THE STRAIGHTEDGE!
Kid 2: I know. I know.
Straightedge Kid: NEVER WANT TO USE A CRUTCH! I'VE GOT THE STRAIGHTEDGE!
Kid 2: Great. I know.
Straightedge Kid: I'VE GOT THE---
Kid 2: SHUT THE FUCK UP. I GET IT.
by ParisKills July 04, 2006
 
13.
straight edge (sXe)consists of the 3 X's

X- no recreational drug use (includes caffeine- which is a stimulant drug; some will accept drugs such as codeine or morphine for medicinal purposes)

X- no alcohol (some go as far as no Ny-Quil or Day-Quil because they include alcohol)

X- no casual (it doesn't mean abstinence, it means that you won't have one-night stands, but will wait until you are in a commited relationship to have sex.)

People have associated sXe as gang affiliation, but it is a way of life such as vegetarianism or celebasy. it is a way of life that consists of not poisoning your body with ignorance and sustaining a healthy lifestyle.
i am straight edge and for all the people who think it is the "popular" thing to do, you're wrong, and should accept it as a good thing because atleast there will be a few less drug-addicts, alcoholics, or AIDS carriers coming to a town near you!!!!
by Lori January 30, 2004
 
14.
As said previously, this is an idea mainly thought to be coined by Minor Threat (thus being an offshoot of punk/hardcore).
Their song Straight Edge outlines their lifestyle that they choose to live... I've been told it was their drummer who was using a ruler to draw a poster and noted that the ruler's straight edge was a metaphor for their lifestyles...
The basic outline of straight edge is, as said before, not wanting to or taking part in:
Drinking (or any mind effecting drugs)
Smoking
Casual sex (without a loving relationship)

This is just a simple guideline of what the LIFESTYLE of an edge person is. It can be built upon with vegan/vegetarianism, no caffeine and other choices that keep your body poison free.
An X can be worn on the hands of people who are edge, along with stating poison free, straight edge can be abbreviated to sXe. The X on the hand is because at punk/hardcore gigs, an X was drawn on the hands of minors so that they would not get served at the bar. With this movement people started putting Xs on their hands to show that they did not want to drink.
The idea of straight edge is not to poison the mind and body with anything that is bad for it, this, to me includes being a general bastard to people… For me its being the best person you can be.

We are not boring people, I choose not to drink, it doesn't mean I can’t have fun, or go to parties, I just have fun while knowing what I’m doing and remembering.
Straight edge should unite people and not turn into a gang who discriminate against people who do poison their bodies... It's their choice, let them live with it, I don’t look down on people who aren’t edge.
Two good examples are:
Davey Havok (AFI)
Justin Sane (Anti-flag)
... These guys are modern day saints in my opinion

non sXe: do you want a drink/joint/smoke/one night stand… etc.?
sXe: No thanks, I don’t want to do that
(Straight edge is not a reason not to drink, smoke etc. A straight edge person will have their own reasons; straight edge is just a way of showing their lifestyle.)
by Stef P May 25, 2005