What is Fahfah?
1.
noun,
1) A person of the female persuasion whose continuous and high pitched prattle induces a psychotic state in which the listener is only able to hear "Fah, fahfah fah ... fah fahfahfah fah fah."
2) a girl who speaks continuously without taking a breath (either gossiping or relating meaningless/trivial events in her life) and uses the word "like" for every other word.
see also Tee Hee girl
FahFah:
"... so then he, like, says to me, like get over here. And I'm all, like, no, like, whatever"
Someone who can't have a decent conversation on the other side of the room:
"gees, I wish that freakin' FahFah would shut her ever loving mouth"
See