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General
Everyday acronyms and abbreviations from a wide range of subjects.
10,334 definitions
Off To Bed
OTF
Off Topic
OTB
Oh Baby
OB
Oh Brother!
OBO
Oh My God
OMIK
Oh No Not Again
ONNTA
Oh No, Not This Again
OO
Oh, By The Way
OD
Oh, I See
OJT
Okay
OL
On A Totally Unrelated Subject
OAUS
On An Unrelated Subject
OB
On My Back
OMDB
On Second Thought
OT
On The Floor
OTFL
On The Floor Laughing
OTL
On The Job Training
OK
On The Other Hand
OTOOH
On The Other Other Hand
OTT
On The Third Hand
OTTOMH
One Of These Days
OS
Online Love
OLL
Only For You
OATUS
Only Laughing A Little
OM
Open Mouth Insert Keyboard
ONNA
Operating System
OST
Operator Indisposed
OIC
Or Best offer
OBTW
Or Words To That Effect
OZ
Other Woman
OWTTE
Out Of Character
OOI
Out Of Interest
OOT
Out Of The Box
OOTC
Out Of time
OOTB
Out To Lunch
OTOH
Over And Out (Goodbye)
OOC
Over Dose
OD
Over Drive
OI
Over My Dead Body
OMG
Over The Top
OTTH