When an individual hasn't brushed his teeth or performed some form of oral hygiene for quite some time and encroaches upon your personal space, so that you are assaulted by an odor not far different from that of an anal sphinchter. Motivating the innocent party to proclaim with much consternation, "GOLLY!"
"Geezus Bill, did you brush your teeth? You have the worst case of golly gob I ever smelled!"