Nope as stated in legal binding Book of Dibbs, reference 9312, paragraph 6,section 8, page 472. I quote 'A person or persons in good standing in the community of dibbs may call pre-dibs up to and including 30 days prior to the actual item being dibbed on. This however is subject to review from the author of the Rules of Dibbs. The above author has authority to refuse anyone he does not deem worthy of dibbing. End of quote.
That's paragraph 5, section 9, you idiot.