A)An insult used to show stupidity

B)Someone that shows you how much more stupid people really are, than what you thought they were.

C)Another way of calling someone a dumb shit or saying no shit.

Dur is a word used by those who haven't the slightest idea on what to say in either the awkward moments in life or the WTF moments.

another way of saying "there".

in particular, used in part of a greeting.

A person that sells marijuana/weed in small quantities.

Modified (punk) version of "duh," use to make fun of retarded people.

driving under restraint
driving under restriction
driving under revocation

When listed as a traffic offense this can be a number of license related issues...depending on the state.

1.an incredibly stupid sound that is made when someone does somthing stupid..
2. a cat's face