Bullying and Gang Prevention for School Safety and Crime Reduction Act of 2005 - Amends: (1) the Safe and Drug-Free Schools and Communities Act to cover bullying and gang (as well as drug and violence) prevention; and (2) the Omnibus Crime Control and Safe Streets Act of 1968 to authorize (with respect to juvenile accountability block grants) accountability-based programs designed to enhance school safety, which may include research-based bullying and gang prevention programs.