I had never heard of the word whinge before meeting people on this board, and in truth I'm still not sure how to pronounce it.
but heard a lot of whinging from the board as well.. Jackie

winj and winj-ing (like sponge is spunj) as opposed to wing and wing-ing. No modification of the soft or hard g by the addition of the -ing in either case.
Both whinging and whingeing are given in my POD.