What does CYF mean?Check your Facebook
Other definitions of CYF:
All of our slang term and phrase definitions are made possible by our wonderful visitors. If you know of another definition of CYF that should be included here, please let us know.
How to use the term CYF:
There are no example uses of CYF at this time. We would greatly appreciate your contribution if you would like to submit your own!
More slang terms:
too numerous to count
Internal Revenue Service