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9.
Gem
Used to describe a person in a positive light, like a precious jewel. But can also be used sarcastically or very negatively in some respects.
Positive:
"Alice is a real gem!"

Negative:
A: "..caught with pants 'round her ankles"
B: "Cor, she's a riiight gem!"
 
1.
gem
A gem is something that is absolutely great. Usually preceded by the word 'absolute.' Popularized by a certain individual named Dave A.
Tom Brady is an absolute gem.
by noodles May 26, 2004
 
2.
gem
somehting amazingly beautiful, nearly perfect, or ridiculously incredible
Courtney is a precious gem.
by johnny logo November 20, 2004
 
3.
GEM
(noun)
a Glen Ellyn Mom, usually involves themselves in the following activites:
-Book Clubs
-Bible Clubs
-Dinner Clubs
-Bible Studies
-Yoga groups
-Go on walks with friends to "chat"
-Gossip about anything and everything
-Stay at home, let the husband do all the work
-Garden and make it look like they care
-Go to salon about 3 time a week
-Sit at home all day and do nothing because they're filthy rich and dumb
-Buy nice things for the pets
-Gossip some more
-Gossip more, about their kids and random kids they don't know
-Complain about everything wrong in their perfect Glen Ellyn life
kid#1- Hey dude, some GEM called my mom and told her about last night...

kid#2- Wow, what a GEM. I can't believe GEMs these days.
by bitchguesswhothisis May 14, 2011
 
4.
Gem
A girl who is ridiculously perfect in all aspects of life. A gem is intelligent, witty, adventurous, beautiful, cute, and always classy. Gems are extremely rare, but often get overlooked for dumb girls who are willing to put out on the first date. Please gentlemen! STOP making mistakes!! If you find a gem, and can capture her heart, keep her!
"Ana and Elena are fucking gems!"
"Yeah, but they're probably too good for us."

"Well, at least they have each other if they can never find the perfect guy!"
by Aladdin818 August 27, 2012
 
5.
gem
used in dundee
meaning im up for it

(prounced with a g at the start/not said jem)
person 1 - here mate fancy a necky?
person 2 - eh mate em gem
by lolatlouise August 11, 2010
 
6.
gem
Something amazing, cool, or fantastic.
Yo, that lecture was gem!
by Jbucci February 02, 2005
 
7.
GEM
1. Positive: When something/someone resembles the quality of a fine jewel, either in terms of behaviour or appearance.

2. Negative: Used with sarcasm to describe someone/something that is definately not possessing the good/rare qualitites of a precious jewel.
1. You know what, our freind Juanita is such a nice pal, she is a true gem.

2. -Look at that creepy man across the road eating dog poo!!
-Wow. That's a GEM - straight from the necklace.
by Siddies. March 28, 2009