Pseudo-German word for ,"Fuck shit." A literal replacement for the word, "tomfoolery," without sounding as goofy. If you can pronounce it. Fuh-hi-fen-fif.
-"Tom is the literal worst person you could have as a speaker at your mom's funeral. Dude is never serious. Always on some F'hifenfif."

-"What the fuck did you just say?"
by VeryPerson February 11, 2022
Get the F'hifenfif mug.