What does FDOI mean?
First day of issue
Other definitions of FDOI:
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How to use the term FDOI:
There are no example uses of FDOI at this time. We would greatly appreciate your contribution if you would like to submit your own!
More slang terms:
1UP
Extra life in a game
NAGB
Nearly Almost A Good Bridge
IYTS
If You Think So
HYE
Have you ever
