mikejuk writes: GIF started out as a humble acronym 25 years ago, entered common parlance as the format used for web graphics and now achieves fame as a verb by becoming Oxford Dictionaries USA Word of the Year 2012. GIF as a noun has always been an all-capital letter noun. Becoming a verb has caused problems concerning the use of capital and lower case letters. The common form is to keep the noun in caps and add the verbal endings in lower case — as in GIFed,GIFing), However, an all lower-case spelling with the f duplicated (giffed, giffing) is also being used.
I never cheated an honest man, only rascals. They wanted something for
nothing. I gave them nothing for something.
-- Joseph "Yellow Kid" Weil