This term and commonly used phrase stands for 'little girl' and is pronounced 'el-gee'. The girl referred to maybe not necessarily a slut, but a girl around the age of sixteen or below who is renowned for attempting to appear older than their actual age. For example many try to simulate wild nights they have seen their siblings participate in while others affiliate themselves with sixth formers and university students, sometimes successfully having relations of an intimate nature with them. Many go on to boast about these events, often lying about details. The term was coined in Bedford School by the renowned LG Bandits, also known for coining other key phrases of the time. Another related phrase is 'TLG' (tasty/too little girl) referring to a girl who is too young or young but very very good looking.
"Classic LG's"

"Mate, your such an LG hunter/bandit"

"That LG got dealt wiv"

"Man, how waste are LG's these days"

"I cant wait till that LG is legal"

"LGs lookin too buff these dayz"
by Anonymous Profile December 26, 2008
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LG, or Little Girl, is that sausage-shaped child you see frequenting keggers and parties. She will claim to be 17, but her middle-school ID card shows otherwise. She uses her mom's push up bra to trick the men into believing she has boobs, and buys size 0 pants to trick the man into believing her babyfat is all gone- thus proving she is a woman. (Tip: Lift her shirt, you'll see where all the babyfat from her lower half went.)
Though she casually dates the seniors and graduates from her school, she'll fuck anyone twice her age for a hit of exctasy. She brings drama and chaos to each person she nears.

The LG stands proudly for her cause- which is rides to the liquor store for ciders and bacardi breezers, free pot, and popularity amongst her youngster friends.
She will put out to anyone older than her, to further boost her sense of self-worth and popularity.
Example:

Guy 1: "Dude, did you hear, half the school has Syphillis!"

Guy 2: "Yea. See that LG over there, making out with her friends? She started it."
by black.apple November 10, 2006
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A Korean IT company that is comprised of two companies that merged, Lucky and Gold, hence, LG (LuckyGold). LG is currently using it's initials to stand for "Life's Good"
LG is a well rounded IT company based in Korea.
by dlwls88 December 21, 2004
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Little girls.

Not necessarily a slut, but girls around the mid teens who are easily influenced.
"Man, none of these girls at this party are putting out. Lets go pick up some LG's."
by Huw January 7, 2004
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lg means litte girl. like the little grade nines at your highschool
look at that lg. shes such a slut.
by potato girl January 16, 2005
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If somebody comments LG on your post ir says your LG it means looking good
Your LG babes
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An LG or "Little Girl" is a female between the age of 13 and 16 who attempts to look older (or in her favorite word 'mature') by applying superabundant amounts of makeup on her face and by wearing what appears to be hooker attire (found at your friendly downtown alleyways).

She can be found at any/all college party entrances trying to seduce the bouncers into letting her and her LG pack inside.
Man - "Well that was some great sex."

LG - "Yup. So can you help me write this essay? We're reading The Catcher In The Rye."

Man - "Wait, are you an LG?"

LG - "Of course not! I'm fifteen."
by ChocolateSquirrel October 15, 2010
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