Easy to find any text acronym
O
O Hugs
O4U Only for you
OAO Over and out
OATUS On a totally unrelated subject
OAUS On an unrelated subject
OB Oh baby -or- Oh brother
OBE Overcome by events
OBTW Oh by the way
OBX Old battle axe
OCD Obsessive compulsive disorder
ODTAA One damn thing after another
OFC Of course
OG Original gangster
OH Overheard
OI Operator indisposed
OIB Oh, I'm back
OIC Oh, I see
OICU812 Oh I see, you ate one too
OJ Only joking
OL Old lady
OLL Online love
OLN OnLine netiquette
OLO Only laughed once
OM Old man -or- Oh, my
OMAA Oh, my aching ass
OMB Oh my buddha
OMDB Over my dead body
OMFG Oh my f***ing God
OMG Oh my God
OMGYG2BK Oh my God, you got to be kidding
OMIK Open mouth, insert keyboard
OML Oh my lord
OMW On my way
ONID Oh no I didn't
ONL Online
ONNA Oh no, not again
ONNTA Oh no, not this again
ONUD Oh no you didn't
OO Over and out
OOAK One of a kind
OOC Out of character
OOH Out of here
OOO Out of office
OOS Out of stock
OOT Out of touch
OOTD One of these days
OOTO Out of the office
OP On phone
ORLY Oh really
OSIF Oh s*** I forgot
OSINTOT Oh s*** I never thought of that
OST On second thought
OTB Off to bed
OTFL On the floor laughing
OTH Off the hook
OTL Out to lunch
OTOH On the other hand
OTP On the phone
OTT Over the top
OTTOMH Off the top of my head
OTW Off to work -or- Off the wall
OUSU Oh, you shut up
OVA Over
OWTTE Or words to that effect
OYO On your own
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