Geetar as in geetar.com is cool. A kind of onomatopoeic way of saying the conventional 'Gui-tar'. Often used in southern states of the U.S through the local dialect, guitar pickers soon picked up on this accented 'Gee'. As an addition to the conventional explanation, the word 'Geet' is also a Hindu word for 'music and creativity' which, in my mind, makes saying 'Geetar' just that little bit more cooler than just 'Guitar'.
I just found an awesome site called www.geetar.com with a free e-book to download.
" Paw, git my Geetar down from the shelf. I feel a heap o' fine pickin' about to happenin' "