What is Otbm?
1.
An acronym for "Off The Books Mrs" these four letters are referred to usually by men in reference to a second simultaneous partner unknown to a current girlfriend or wife.
John told his girlfriend that he was staying late in the office but he was actually off to meet the OTBM
See
Random Words:
1.
The flexible working hours adopted by inhabitants of the Middle East.
"oh, don't worry about him, he's on kaftan time&qu..