The acronym standing for Newly Initiated Brothers. When one pledge class in a fraternity gets initiated, the NIBs are still at the bottom of the chain for the few weeks until the new pledges begin.
Sam: Why haven't any of the pledge rides answered their phones.
Bob: They're NIBs. They don't give a fuck any more.
Bob: They're NIBs. They don't give a fuck any more.
by NappyBoy February 10, 2013

the exciting and pleasurable art of two men jousting with their erect penis's. the loser of this raging battle is then obliged to bend over while the winner runs from distance and jousts up the losers anus.
by Capitani Pedro August 10, 2006

by freakofftrain July 25, 2006

When Myra wouldn't stop asking all those questions about my boyfriend I finally had to tell her to nib out.
by Roody September 24, 2005

by entrer_a_username September 24, 2019

A bit of skin that grows on your chest, underarm or face. Usually fat or old people have "skin nibs" on their bodies. Otherwise known as "proud flesh" or a "skin tag". Medically known as 'cutaneous papilloma' or an 'acrochordon'.
by J.D. Nelson February 8, 2007
