Cockney rhyming slang for flared trousers re: 'flares' - shortening of the full phrase 'Lionel Blairs'.
Fuck me! Look at the size of the Lionels on that twat!
by Pastor Kidneys December 20, 2007
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Or "the Monk" due to his birds nest barnet which is currently defying all scientific reasoning with it's miraculous regrowth. This poor misguided City fan is sometimes partial to wine with his lunch, other times partial to Guinness with his lunch. Mostly, though, due to being barred from the local Chinese chippy, he skips lunch altogether and has wine with Guinness. Ruthless with the ladies and will often turn them down with reckless abandon (.....)
Lionel: Most likely to be heard saying, "Hold me back, hold me back" of a night out.
by Ule Neverwalk Alone February 1, 2007
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A guy who can sometimes be irritating but is a really nice person when you get to know him. He kind and very sexy,so if you have a lionelle you should keep him cause he is a keeper and he will give alot of love. Lionelle are usually related to an Antonio and they make a good duo there partners in crime even though a lionelle can be irritating at times.Lionelle is the best person you could ever meet.
Wow there go a lionelle is my hair OK. Wow lionelle gets all the girls
by Jacob0005 September 5, 2018
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A boy that's always staring at my friend.(Who is a boy)

See:gmf
Ewwwwww! Lionell is staring at my brother!
by Cherri-Berri November 26, 2004
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stupid ass definition that comes up 50% of the time you hit the random button on UD
seriously, hit random a couple times

Lionel Migration
by rockhard July 11, 2008
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A model railroading expression generally used to describe unprototypical operations,extremely toy-like,a real far cry from reality.
I don't like his setup. I think he has lionel mentality.
by teh744 May 26, 2008
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sacrificing sleep in return for extra time of working or studying (cramming), usually lasting all night.

Derived from Lionel Richie's classic from the 80's "All Night Long" and commonly posted along with it on social media platforms.

Modern synonym for "to pull an all-nighter".
I'll need to pull a lionel to handle this amount of work.

on a chat ...
(Aussie): what R u doin' up that late?
(You): pulling a lionel
(Aussie): that's ridiculously WHACK!

how long you been studying for the exam?
- took me a double-lionel.
respect!
by oliverski November 20, 2011
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