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25.
One of those cute phrases that go from being hip to being hopeless in a very short time. When fat check-out women in Doritos adverts start using it, you know it's about as cool as a set of false teeth. Anyway, what's so great about suggesting that someone was educated in the Charles Dickens era?
"The place I was educated is still standing..."

"Old school, man!"
by Hunthill February 05, 2007
 
1.
Anything that is from an earlier era and looked upon with high regard or respect. Can be used to refer to music, clothing, language, or anything really.
Client: We have three PC's running MS-Dos 6.
Consultant: Shi'...that's old school.
by cazort March 31, 2004
 
2.
Anything that refers to a previous generation of a subject/idea/object/etc. Typically, they are highly regarded and sometimes the very thing that started it all.
Guy: Damn, Super Mario Bros. The gameplay is old school.

Kid: These graphics suck. Where is the life meter?

Guy: What you say boy? *five across the eye*
by Chi Nou June 07, 2005
 
3.
from back in the day
Alphonse was feelin the old school hiphop flavas
by Ed April 28, 2003
 
4.
A positive appellation referring to when things weren't flashy but empty of substance, were done by hard work, didn't pander to the lowest common denominator, and required real skill. Labour-saving devices, shortcuts that reduce quality and quitting before the task is done are not characteristics of "old school."

In reference to computer games, refers to a game that had substantial playability without flashy graphics or eye candy. Old school gamers appreciate difficult maneuvers, careful planning, and scorched earth policies.

In reference to role-playing games, old school refers to games that tested players' wits, could kill off careless characters, and required dedication and inner strength to play. Old school games didn't pander to the ideas that everyone is created equal, that all options are open to all races, that the markets were somehow free, and that a quasi-medieval society could have near 100% literacy.

See also classic.
"What's your favorite computer game?"
"StarCrack!"
"Old School, man!"

HackMaster: old school gaming. Who's watching your back?
by LWM May 30, 2008
 
5.
1. Music from back in the day, the last decate and before.
2. A. Some thing that past is time or it's fashion, or
B. a bring back memory of of a thing in the respectable way.
1. Rappers Delight is Ol' School.
2. A. Phist is Ol' School.
B. NWA is the ol' school that still hot today.
by oz April 11, 2004
 
6.
1) Retro
2) As Before (as something was done, said, etc.)
1) Those shoes are so old school!
2) We're just kickin' it ol' school!
by Spoot Juice May 23, 2004
 
7.
Someone oldschool is someone acting cool and casual, bombing newbies on it's way, and always doing what he can to get a good time with his real buddies.
Seb dude! You're one oldschool mother fucka!
by Mathieu Grenier October 03, 2004