Acronym for "Inter-Galactic All Time Favorite". The best life form (alien or otherwise) you've ever screwed.
My IGATF is Maxima who I met in Saarbruken, Germany. She said she was from Jamaica, but I'm convinced she was from another planet, cuz there's no way any human could move like she did.
by roseyamigo April 14, 2007
Get the IGATFmug.