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

IWIYW
If I Will You Will

FOOPA
Fat in belly area

TA
Thank you

DYK
Did You Know