Top definition
It is portmanteau of Justin Bieber and Comment. It refers to the remarkable funny top comment made on Justin bieber on websites, blogs, jokes, news etc.

Etymology of the word says that this became famous when people visited any news, video, blog etc. about Justin Bieber just Only to SEE the funny comments.
Baby ft. Ludacris Top Comments :

"penis and glue for justin beaver...paste glue here and on ur pussy and then enjoy "

Second Top Comment (Bieberment):

"i came here for bieberment"
by mark.robins210 April 27, 2012
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