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4.
ps1
An awesome console that poor kids still play 'cuz they can't afford a 360.
kid1: Wanna verse me on Twisted Metal 3?
kid2: d00d, ps1 is so damn old. Let's play Halo on my 360.
kid1: Who cares? It'll be fun!!!
by mr_w00ter April 01, 2007
 
1.
PS1
An updated version of the original Playstation (PSX) console. It was smaller, white, and had an attachable monitor that had to be purchased separately. It was designed to be more travel-friendly and to make Sony some extra money before the release of the PS2. This was a moderate success.
Despite what many think, the PS1 was not the first Playstation, but an update of the original console.
by D351 February 02, 2007
 
2.
PS1
Playstation 1... The PS1 was released in 1994 (Japan) And 1995 (Europe + USA)

As of May 18th 2004 the last ever Playstation 1 game was released - FIFA Football 2005.

Due to the release of the Playstation 2 and 3 the need to have a Playstation 1 for its games has disappeared and also due to the Playstation 1 being released over 11 years ago the Playstation 1 can be classed as rare.
Hey look its a PS1! The graphics and games are horrible and its ancient...
by Edward McPherson July 05, 2007
 
3.
ps1
the first sony console to be made. An abbrieviation on Playstation.
boy:i feel like playin ps1
girl:dat thing is old
by tking December 21, 2006
 
5.
abbreviation standing for poo station 1. The latter number can be varied as you desgnate various poo stations throughout your domicile. In my home, ps 1 is one the first floor and ps 2 is my bathroom on the second floor.
"Dude, that indian food was sweet! When we get home I got dibs on ps1." "If your going take a really nasty shit, please use ps2."
by Hendo May 03, 2005