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1.
Pronunciation: cruh-bob

Function: noun

Etymology: Nordic (possibly Sasquatch), from ancient DOM text

1(a) noun: A clumsy social error. Specifically, the introduction of a topic to a forum that has already been introduced before.

Often used in conjunction with sbab.
"Dude, serious crbab. Umar just sent that link out about 2 hours ago! Tool."
by ny2texas June 30, 2008