slang: rollerblades. a type of rollerskate where the wheels are lined up down the center.
A cross between rollerskates and iceskates.
I need to get me a new pair of in-lines.
by marie drake March 10, 2004
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A term used to describe a teenage male who wears his hat/beanie/hood near the end of his head.
Dude, T.I is so A-line, his beanie is practically hovering.
by Kelly Kwarta February 16, 2009
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When someone that is of the more popular statis is wearing his/her hat or other head dressing at the edge of their head to the point where it looks like if the wind blows from any direction it would fall off thus making them look too cool to associate with. Also seen walking with both hands in jean pockets with head tilted somewhat down and hoodie jacket zipped about half way up.
Person 1: Goshhh, that Sean Compton guy is so fresh and a-line.
Person 2: It's supposed to be windy today, I really hope that his hat doesn't fall off!
Person 1: I know, you are so right Kelly. Then who could we possibly look up to as our a-line hero!?
by Hagitha February 19, 2009
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A word which can refer to snorting cocaine. Can also mean doing nothing or hanging out.
We were lining for like 50 hours straight...no wonder we were wasted

Wanna go lining with us, dude?
by trickligan December 11, 2005
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in football when you pass the ball straight forwards across the throw-in line
(teammate gets the ball) (you are across the line)
Player 2: Line it!

PLayer 1: Okay here! (long passes the ball)
by cultured football fan June 28, 2018
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1. Usually proceeded by "the" or "that". It's the imaginary wall that seperates friendship and something confusing, something more. Crossing that line, is usually a bad thing and can be very costly to a friendship. Once this line is passed, there is no turning back, the door is closed.

2. Any line that separates good things and bad things.
1. "I regret that we crossed that line."

2. "Don't cross the line with that teacher. She'll give you a referral on the spot."
by ilovepp954 August 15, 2005
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