What does DFO mean?

dumb f**king operator



Other definitions of DFO:

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How to use the term DFO:

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More slang terms:

AYOR

AYOR

At Your Own Risk

NQT

NQT

Newly Qualified Teacher

TTIUWP

TTIUWP

This thread is useless without pictures

DBMN

DBMN

Don't bug me now