It's a term that recently used a lot on social media by Indonesians.
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
"He always fafifu wasweswos about climate change but he still doesn't want to turn off the air conditioner"
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.