Top Definition
the term used for masterbating to a picture or the idea of Justin Bieber. Can also refer to masterbating to any form of Justin Bieber.
I was bieberbating so hard last night you guys
#bieberboning #extabieber #bieberocity #bieberboner #biebergasm
by KJrulzOHYEAH99 June 19, 2011
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