Barr is a generalization of a variety of drugs manufactured by Barr Pharmaceuticals. This particularly pertains to prescription strength cough syrups containing the narcotics codeine or hydrocodone. This is often misspelled as "barre"

adj., a person or an object that is very awkward or unusual in their current state or environment; a state of existence in which a person seems incapable of blending in conspicuously or acting in such a way so as to appear normal; existing in a perpetual state of being "lame"

A word commonly used to excert confusion on a pedestrian or even a fellow driver.

An exclamation of puzzled surprise.

barr is a word used in conjunction with the recreational or medicinal use of marijuana.
I have heard it mainly in the York area and it was derived from the word battered, which when said fast and lazily becomes the word barr. It has since then evolved to mean many things:

1. To be barr (to be stoned)
2. To buy barr (to buy weed)
3. To get barr (to smoke weed)
4. Can't be barr (can't be bothered)

it is used to mean the act of ignoring someone

My word! the word that describes my entire existence and personality.(though i guess that isn't the best thing to be proud of..)
I introduce this (my favorite) word to the world, because it is the key to arguments, or and as such; combacks. pronounced:(behr), this word(depending on the voice used when said) can mean quite a many things.
1. It's best defenition would (as used) is the perplexity or confusion of an object, phrase, person, action...ect.
2. this word is also a great declaration of war statement, or victory call (preferably used) yelp.
People usually get confused when I tell them barr can be used for a declaration of war. But it's actually quite simple. Just tick off someone you really despise, so that they make one of those 'think-I'm-so-smart' comebacks,and then rip it loose. Just give them what you got, like rar it in their face, make a cruel statement back at them, and then make a finishing-touch departure. Unless they call back at you something evil, because you can't ever let them escape your clutches with some stupid and evil statement while your making your finishinf touch before you get them really show them whoes boss.So kick em' or something. Whatever, your choice after that happens.
But if you don't choose the "rip it out, and let them have it" technique, you could (making it have more of a lasting touch) say it in a low voice while squinting your eyes. You know giving them a horrible look to make em' feel a bit taken aback.
3. And of course...