Top Definition
An acronym for "just being bored". Usually used online when someone is bored.
John: What's up?
Sarah: Nothing much, jbb.
by mwhorn March 11, 2006
a Jonas Brothers Buddy
JBB 1 - "You know what I'm thinking JBB2"
JBB 2 - "Yes I do, JBB1"
Both JBBs - "Nick Jonas totally wrote that song about Miley!!"
by fricholasjonas August 25, 2010
Stands for 'j00 batty boys' - a common online alias for those of homosexual tendencies
"Here comes jbb!"

"Tomby rides jbb's rocket"
by Anonymous October 05, 2003
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