helpdesk hillbilly

a member of a social gathering or work colleague who is mentally unstable and has the tendancy to explode without warning.
A cider drinking unhinged work colleague who lives with every living member of his family and resembles a cast member from deliverance. Also mumbles to himself and sits redfaced awaiting his chance to jump into action as a fully fledged psycho

i phoned the helpdesk the other day and some helpdesk hillbilly kept me on the line talking s**t, playing his banjo and whispering to his dead relatives ashes he keeps on his desk in little jars.