The meaning of the Acronym RBU is...

RBU is

• Rubber Band Unit
• Rasputin's Big Unit

More Meanings For RBU:

• Request By User
• Real Basic University
• Reaction Bonded Urethane
• Rubber Band Unit
• Rasputin's Big Unit
• Rehabilitation Bedservice Unit
• Ready Boat Unit
• Radical Boat Reunion
• Russian Anti-submarine rocket
• Ready Boat Unit
• Roebourne, Australia

RBU is also in:

• Airport Codes
• Military
• Physiology
• Plastics
• Software
• Transportation
• Unfiled
• Universities