GOOOOG
From Wiki
"GOOOOG" is a string that shows up as a Google when certain steps in Google Desktop are taken.
In some versions of Google Desktop, if you go to the "Index Status" page then click an online search like "Web" it takes you to Google.com and puts GOOOOG in the input box (like this).
This trivial occurence has, of course, fueled rampant speculation by small parts of the SEO community as to what its "meaning" is.