The meaning of the Acronym OTB is...

OTB is

• Off To Bed

More Meanings For OTB:

• On The Button
• Off To Bed
• Over-The-Board
• Order To Build
• Offer To Buy
• One Trashy Beeeoottch
• Over The Board
• Only The Brave
• Only The Burnt
• Out Of The Blue
• Off The Broiler
• Off Trial Balance
• Orix Trust and Banking
• On The Ball
• On Time Bonus

OTB is also in:

• Accounting
• Chat
• Chess
• Firms
• General
• SMS
• Unfiled