Fabedaf can mean anything and replace any word in any language, however the sentence may not be able to be understood when used wrong.
(A1) Can you come over to my house tomorrow?
(A2) Can you Fabedaf over to my house tomorrow?
(B)Q: What the heck does Fabedaf mean?
A: Fabedaf is a word that can Fabedaf anything, Ya Fabedaf?