Someone who walks with their head angled 30-45 degrees to the side, one of their arms in a crooked position, their feet turned inwards (like Kevin Spacey in The Usual Suspects), walking down a street, with the occasional noise (like that dude in Cube) "Errrrrahhhhhhhh".

1) A retarded person not to be laughed at in a cruel and heartless manner.

2) A brave person.

3) An insulting name given to a mentally or physically handicapped person.

1. Relating to, of the same nature as, or characterized by involuntary muscular contractions, esp. the long-continued contractions known as tonic spasms.
2. A person afflicted by such spasms; a person suffering from cerebral palsy.

A complete retard who does not know what they are doing and make weird noises like "Mur Mur ehhrreehr"

Convo between Bob and a Spastic:

Bob: Hi you spaz.

Spastic: MurHurDurHurDurHur!!

Bob: O...Kay i'll just agree with you.

Spastic: Meuurheerr, can i hug youu?

also known as spazz or spaz, means to act like you have ADD (Attention Deficite Disorder) . Usually bouncing off the walls.

a retarded or disabled person. probably born on the fourth of july.

some crippled chavy!!!