The name given to the collective group of people that twitch like a chicken due to the high volumes of methamphetamines coursing through their body. Suburban white trash common to most west coast cities (trashicus domesticus) and trailer parks.
Any of various similar or related uneducated, toothless cranksters.
They can often be found awake at any time of day/night cleaning behind the toilet with a toothbrush.
See also: crankster, crank or tweeker