a demonic group of high-schoolers that is at just the right time in they're career so that they're just old enough to be considered upperclassmen, but just young enough to not have the stress of college apps like the seniors. this results in a tremendous and annoying ego enhancement, making them the most troublesome and/or obnoxious class in the school.
freshman: (to junior) do you know where room 231 is?

juniors: yea its down the hall to the right (freshman leaves and junior and friends laugh because they know it's actually on the other side of the school)

junior: (to senior) how are the college apps going?

senior: not too well, i haven't finished yet AND i got deferred from my first pick.

junior: HAHAHHAHHAAHAHAHAHAsucks.
by sidero December 19, 2009
A guy who thinks he is the shit. Thinks that smoking weed and going to jail a lot makes him cooler.lies to girls,plays with them,and after getting what he wants from them leaves them. He is alright looking,not the best. Always gets in trouble and is fake most of the time.
Jessica: omg junior is talking to me

Brenda: don't get your hopes up,he comes and goes.
by Stargirll March 04, 2012
Junior is also a slang word used in Asia and UK for dick or penis
I like to play with junior before I go to bed!
by gwmsg September 28, 2009
Someone who acts like they are capable of doing something special but cannot match their words with an action. Someone who brags but cannot come through.
She's such a junior for telling everyone that she could drink us under the table when she couldn't hold her liquor.
by Th federation of judges February 24, 2009
Slang for friend or acquaintance typically used in New York and San Francisco Bay Area. Has nothing to do with age in relation to casual talk.
Person 1: What up son?

Person 2: What's good junior?

Person 1: Same crap different day kid.
by Maynayz February 01, 2009
1.) Junior, meaning small, as in small portion of my cig.
2.) Junior, abbrev. JR, creators Josh & Ryan.

Used to describe a hit from a cig because drag, hit, puff and others have weed connotations.
"Hey, wanna junior of my cig"
by JR520 March 26, 2007
The Ghettoest Of All Ghettoes...
1:Look at that Junior over there with her tracks hanging all out of her head...

2: That aint cute...

1: Sho aint
by Non-Ghetto February 02, 2011

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