Common Acronyms
554 acronyms and abbreviations.
OBTW
oh, by the way
OCD
obsessive-compulsive disorder
OFC
of course
OFIS
on floor with stitches
OG
original gangster
OIC
oh, I see
OKR
objectives and key results
OMG
oh my god / gosh / goodness
OOC
out of character
OP
original poster
OS
operating system
OTOH
on the other hand
OTTOMH
off the top of my head