Fafifu or fafifu wasweswos basically means bullshit or nonsense. People usually use it to mock Mr. Know-it-all, or someone who try to appear smarter by using big words, or someone who act like everything they say is very deep and meaningful
The act of typing the letters f and h and ending with f numerous times out of boredom or reasons unknown.
Here is the letters in uppercase FHFHFHFHFHFHFHF.
A general term which can be used instead of fuck buddy or similar reference.
Also can be used to entertain yourself with friends as a drinking game...drink a shot for every FFIF on your profile.