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A term used to describe counterfeit goods of extremely high quality, so much so that they look identical to the authentic product.

Commonly used on r/fashionreps and among other counterfeit clothing communities.
Wow, Aooko’s ‘Ray-Bans’ really are 1:1.

Just got some 1:1 Yeezy knock-offs from China.
by ultimateharibo June 03, 2018
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Jan 18 Word of the Day
1. Blue Monday is the most depressing day of the year, calculated by Dr. Cliff Arnall, a researcher at the University of Cardiff's Center for Lifelong Learning.
Factors used to calculate the date included weather conditions, debt level, time since Christmas, time since failing our New Year's resolutions, low motivation and feeling the need to take action.

In 2005 the date was calculated as January 24th, in 2006 it was January 23rd, and in 2007 it was January 22nd.

2. A song by the hard rock band Orgy from their album Candy Ass.
1. Guy: "Aw man, I feel like absolute shit today."
Friend: "Yeah, same here. I hate Blue Monday."

2. "I wish I could sing Blue Monday to my ex-girlfriend, she's such a bitch."
by L_Roku August 31, 2007
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2
Short cut definition for a one-on-one meeting between an employee and their boss. Commonly used in the subject line of an email or meeting request. Not intended as a formal meeting to review one's performance evaluation, this meeting is often only 30 minutes and is conducted weekly or every other week.
I had my 1:1 with Kevin last night down on the first floor conference room.
by AndrewMcL June 18, 2009
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3
Binary notation for rating the attractiveness of a female human. 0 is no, 1 is yes. First number indicates willingness to perform oral sex in front, the second number oral sex in back.

Technical details are beyond the scope of this paper.

PDG
"Damn, Minka Kelly is hot, definitely 1:1."
by PDGZ November 10, 2020
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