GOMB is an acronym for Get out of my brain. Pronounced "GOM." Used in chat conversations when someone else says something similar at almost the same time.
Jane 1:15pm: I think orange are the best fruits ever
John 1:15pm: Aren't oranges awesome?
Jane 1:16pm: GOMB! haha
John 1:15pm: Aren't oranges awesome?
Jane 1:16pm: GOMB! haha
by pensive-one January 21, 2009
by pensive-one May 11, 2010