What does FAIL mean?
Suck
Other definitions of FAIL:
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How to use the term FAIL:
There are no example uses of FAIL at this time. We would greatly appreciate your contribution if you would like to submit your own!
More slang terms:

NVA
Net value add

AFAIAC
As Far As I Am Concerned

FSS
Fucking Super Sweet

LFR
Laughing for real