Originally used to describe the character Marvin in the Hitchhiker's Guide to the Galaxy books and radio plays. Marvin was a robot with emotions, namely: depression. His sorrowful life was your good time!

It was also a hit song by Radiohead on their third album, OK Computer. Both the name of the album, the song name and a line of the lyrics of the song are taken from Hitchhiker's Guide.
Marvin's most well-known line was "Life...don't talk to me about life"

The line in Radiohead - Paranoid Android that was a tribute to HHGTTG was "When I am king, you will be first against the wall"
by CannedLizard August 26, 2004
A cynical robot who doesn't think the best of most people. One of the main characters in "The Hitchhiker's Guide to the Galaxy"
"Here I am, brain the size of a planet, and they ask me to open a door" - Marvin The Paranoid Android
by Mr Beeblebrox January 22, 2012
Typically someone who is always paranoid either generally or when they are on drugs.
Tony-“eya man a swear a just heard someone knock on me door.”
Michael-“piss off tony ya been on gear for 4 days in a row that’s why. Stop being a paranoid android man.”
by WillyWhackerAttacker July 15, 2022