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When a new school year begins, and the older students decide to point the Freshmen (Grade 9's) out.

In ways, by chasing them around school and drawing dicks on their faces.

NOTE:Only Grade 12's can achieve this prank; younger grades should ask the Grade 12's.
Originating in Toronto,Ontario.
Grade 11 :Hey Man, check out that grade 9. He is annoying, why don't you go Niner him for me, please?
Grade 12: Sure, just let me grab a marker and some tape and start Ninering.
*chases freshman*
by elephantPARADE June 21, 2009
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Aug 9 Word of the Day
Large, beautiful breasts that are keep well consealed and initially appear to be much smaller and less impressive than they actually are until unleashed.
I think Alicia may have some real sleepers.
by KABT October 26, 2007
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3
It's a term used when grade 12's select some grade 9 and do anything to them on the last day of the school.
They will mainly select smart/nerdy looking grade 9's as well those who are unfit to run away(Fat AF).
Chad: Yo Jamal its the last day of school, you got that list of grade nines in the robotics group?
Jamal: Ey man I did let's start the ninering.
by UWuntSumFack? May 18, 2017
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