9ER can be defined as one whom originates from the 9 side. 9ERs are extremely common with people who come from a zip code with the 9 present.
Ayoo look at them 9ERs
by K9_£R February 12, 2021
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Someone who has a side business outside their 9-to-5 profession.
I have a 9-to-5 office job, so I have to work on my furniture restoration business after I get home. I guess you could call me a 5-to-9er."
by smallbusiness October 16, 2017
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One who attempts to be different without real effort, i.e. shopping at Hot Topic, and listening to bands such as Disturbed and Trapt.
1. Damn, Brady, would you look at that! The table-9ers have expanded across the aisle to table three!

2. I wonder why such a large percentage of table-9ers are meteorology majors (or vice-versa).
by Alaric July 18, 2003
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code for a whore or slut.
i saw this girl walking down the street and let my friends know by yelling "10-6-9er."
by Jefferson D. July 13, 2009
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A trilogy of numbers that are spoken at random moments to lighten up the mood.
"Dude my grandma died to day."
"Ehhhhhhh 7-12-9er!"
by Brownie April 21, 2004
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When you and your partner get into a 69 postion, but you pull your head over each others private areas and place your lips to each others ass and either partner can then burb and or fart back and forth into each other ass and mouth. hince the filthy'9er
Ron: "Why does your breath smell like ass?"
Greg: "Probably because I did the filthy'9er all night."
by miner 69er July 12, 2015
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