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1.
Requiring a lot of attention. When describing a person, high-maintenance usually means that the individual is emotionally needy or prone to over-dramatizing a situation to gain attention
Although he was a nice boy, his low self-esteem made him high-maintenance.
by A Gianotto (snipe) November 03, 2002
 
2.
A person who has expensive taste (re. clothing, restaurants, etc.).
This person is never comfortable because he/she is constantly concerned about his/her appearance.
This person feels they are better than most people and usually judge others based on outward appearances.
I am not high maintenance
by John March 22, 2004
 
3.
1. Require (ing) a lot of work/attention to maintain.

2. Require (ing) a lot of money or attention to appearance.

3. Require (ing) a high emotional investment or en excessive amount of money.

EXAMPLES OF HIGH-MAINTENANCE BEHAVIOR:
-Having frequent professional cosmetic consultations, such as hair-dressing, manicures and pedicures
-Excessive worthless spending (tricking)
-Attention craving
-Being too delicate or suavé
NOTE: high-maintenance is primarily used to refer to attractive straight women or a person/people that's stuck on self.
by Mr. Terrence L. Trezvant May 12, 2006
 
4.
1. Requiring much time and many products to keep their appearance at the current level. 2. And/or requiring much attention from others in relationships, romantic or otherwise.
1. I know I'm high maintenance, said the beauty queen.
2. Anne was a high maintenance employee, with her nearly daily requests for time-off or time-shifting.
by dagner December 01, 2007
 
5.
Not Amanda.
wow Amanda isn't high maintenance
by meandksh March 30, 2014
 
6.
A gluttonous queen, narcissistic and mean.
She's so high maintenance, I can't stand being around her anymore.
by wildfirerose August 12, 2008
 
7.
having expensive taste and multiple costly needs frequently.
The teenage girl had to have the expensive, name-brand shoes instead of the cheaper ones that were just as good.
by Kristine October 19, 2003