Mr Chittle: You stupid niner
Another word that could be used for this term is Initiation. However niner is a more specific term referring only to grade nine initiations.
This type of initiation is mostly done in school trips that require students to sleep over,(for example; Muskoka Woods camp) and at night around 1:00 to 3:00 AM, grade 11 or 12 students would wake up, and go around "initating" niners in their sleep.
This term is a new type of initation, started in Bishop Allen Catholic High School, in Toronto, Ontario, Canada.
"The $2.99 omlette and vanilla shake deal is at the Oasis off of I-two-oh-niner, little buddy. For another 2 bucks the waitress with show you her tankers."