VIFFING is a playable word

viff Scrabble® Dictionary

verb
viffed, viffing, viffs
to change direction abruptly of a vertical take-off aircraft
14 Playable Words can be made from "VIFFING"
   2-Letter Words (3 found)
   3-Letter Words (7 found)
   4-Letter Words (2 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)