A game that was never planned, and will never exist. Only idiots actually believe it will become a reality.
Joe: OMG! Halo 2.5 is gonna come on the hard drive of the Xbox 360!!! Like, my uncle who works for Bungie told me!!!11!1!!!oneone!!!1
Bob: You are a total retard.
Bob: You are a total retard.
by dabears1020 October 14, 2005
The time period between mid-2007 and late 2009 when Web2.0 tatics, platforms and ideals were waning, but Web 3.0 had not yet matured or went mainstream.
by avant/chi fan August 20, 2008
A security guard. Derived from 5-0, slang term for a cop. Security guards carry about half the credibility and authority as a regular cop, hence the 2.5.
See also rent-a-cop, mall security.
See also rent-a-cop, mall security.
"Bobby and I were throwing mustard off of the balcony, then some 2.5-0 come by and threatens to calls the cops. Lame"
by JakeStar November 3, 2005
It refers to a point in the base system between 2nd base and 3rd base. It is dry-humping. It has always seemed more than simple groping but it is less than the handjobs/blowjobs of 3rd base. Dry-humping now has a definite place on the base system.
guy1: hey, y'know the base system?
guy2: yeah?
guy1: wher does dry-humping go?
guy2: base 2.5
guy1: ok cool thats good to know
guy3: you guys are fucking retarded
guy2: yeah?
guy1: wher does dry-humping go?
guy2: base 2.5
guy1: ok cool thats good to know
guy3: you guys are fucking retarded
by uberjai July 27, 2012
The new game has 2.5 D graphics.
by The Return of Light Joker July 28, 2008
When your standing there doing a piss and you feel a fart coming on but instead you shart yourself and now you have to sit down on the toilet to finish your shit whilst cleaning up the mess in your undies.
mate, why were you in the toilet so long?
I went in to do a piss and ended up cleaning myself up, bloody done a number 2.5 (two and a half)..
I went in to do a piss and ended up cleaning myself up, bloody done a number 2.5 (two and a half)..
by Wayne-Car May 12, 2017
by MandullorTheBEEKER October 31, 2021