a fucking retard who is addicted to xanax and is basically a zombie.

A term used to reference cannabis/marijuana/weed.

when somebody becomes impaired (retarded) from eating too many zanex pills, or another over the counter drug

Someone who habitually uses Xanax, a antipsychotic perscription drug which interferes with receptors in the brain.
Non-generic Xanax pills are characterized by a linking of four breakable squares in linked a horizantal line, taking on a "bar" like appearance. With key nuertotransmitters blocked off, the behavior of a bartard in question can often be recognized by massive confusion bordering on belligerence. Subject may not be capable of comprehending certain simple concepts, hence the implementation of "tard" as a suffix.

An individual who consumes Xanax, or Alprazolam on a frequent basis. The term can also be used in reference to other recreational benzo users such as those who frequent Benadryl, or Valium.

An individual at a bar who is drunk and acting like a fool.

One who acts like a tard at a bar