The meaning of the Acronym OB is...

OB is

• Ohne Binde
• Original Box
• Ordinary Building
• Old Butterpaws
• Ordinary Builders
• Orlando Bloom
• Old Burroughs
• Output Buffer
• Outside Billing
• Overseas Built
• Original Blogger
• Odd Ball
• One Billion
• Orchard Breezin
• Obesity Br
• Organizational Behaviur
• Obstetrician Or Baby
• Only Bass
• Orchard Breezinamp
• Old Boys
• Output Buffering
• Open Branched
• Old Bridge
• Office Building
• Out Board
• Olympic Boycott
• Odious Brick
• Oscar Bravo
• Off Broadway
• Obese Beast
• Obviously Boilerroom
• Ol B
• Ocean Bay

More Meanings For OB:

• Object cut/paste file (IBM LinkWay)
• Output Block
• Other Board
• Object Bus
• Overflow Bucket
• Option Button
• Obnoxious Because
• Old Buddy
• Oligosaccharide Binding
• Optical Bar
• Outer Banks
• Ornery Brat
• One Big
• Oh Baby
• Our Beds

OB is also in:

• Adults
• Chat
• Chemistry
• Electronics
• File Extensions
• General
• Ocean Science