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1.
Abbrevated form of rimjob the act of having your asshole licked. rim J is only used for man to man action and may be used to describe a douchebag.
Danny: Hey man you wanna rim J after class

Ben: Okay sounds divine

Nick: wow what a couple of Rim J's
by Mr.Moneybags April 06, 2010
4 3
 
2.
its short for rim jaw like bj or blow j
tim: aww i was so fucked last night but i mouth taste like shit

dave: oh yea i for got to tell you you gave clair a rim-j
by shaolinmunchkin July 10, 2008
2 5