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1.
An internet slang for laughing but not really.
Person 1: So i was like wtf rolfmao
Person 1: lol
Person 2: lbnr
by Tha1 September 02, 2007

Words related to lbnr

but im jk laughing lmao lol not really rotfl talk
 
2.
Laughing but not really. Instant Messanger talk.
Instead of saying "lol" when your not really laughing. You can say- "lbnr." So, you wouldnt be lieing. You'd be laughing, but not really. :)
by Johnathan N May 02, 2008