Adjective: To go all expense or upgrade something.
"Might even go one percent and order some bacon cheese fries to start with!"

"Damn Todd, nice that cashmiere?"
Todd: "You know that's right...1% baby!"
by Staxx on Z1043 November 21, 2011
A member of an "outlaw" motorcycle gang. Origin is the American Motorcycle Associations assertion from the 1960s that 99% of motorcyclists are law abiding citizens.

The Hells Angels, Outlaws, Banditos, Pagans, Warlocks, etc. then adopted the idea that they were the 1%.
That 1%er just ran a light in front of a cop, and the cop acted like he wasn't there!
by Chuck November 18, 2003
As a noun:
1. Someone who is in the top 1% in terms of either yearly income or total assets.
2. Someone who simply appears to be rich.
3. Someone who spends an extremely large amount of money on a single interest.
4. Occasionally just refers to the first world in general.

As an adjective:
1. Something usually attributed to one percenters.
2. Goods or services that are way more expensive than similar goods and services.

p.s. This keeps getting rejected, but I'm not making this term up. Search "One percenter" with quotes and more than half of the links refer to this usage. (but it's not on UD yet) You even accepted One Percenter Problem which is this used as an adjective. I took out the sample names used in my previous definition if that was a problem. (wasn't naming friends) Only using pronouns now, except Obama and Edwards who are celebs. Sorry about that.
As a noun:
1. Contrary to what some people think, Obama is a one percenter.
2. He dresses like a one percenter, but he's buried in debt.
3. Everyone in TF2 thinks I'm a one percenter because I have 6 god tier hats.

As an adjective:
1. The iPhone 5 shortage is a one percenter problem.
2. Everyone gave John Edwards crap for his one percenter haircut, but most major politicians who still have hair spend at least that much.
by sarysa October 20, 2012
a member of an Outlaw Motorcycle Club that has actually killed someone
I wouldn't fuck with that guy, he's a one percenter
by Mr_Wall May 19, 2009
The very small portion of drug addicts that are able to cease their addictions without entering a recovery program.
The one percenter left her smack habit behind as if she'd never indulged at all.
by c[B] March 13, 2004
A person with an IQ in the top 1%.

An intelligible representative of the mass or morons that make up humanity - from the perspective of someone with an IQ over 250.
I've just taken an IQ test and discovered that I'm a one-percenter!! :-))

Oh, you are a clever bastard - you and the other 60 million like you.
by Richard the Intellectual January 9, 2004
When your phone is at one percent but that one percent ends up lasting a real long time
"Wow my phone pulled such a one percenter last night!"
by Nicki Dominates February 16, 2017