A TOG is also an acronym for a listener to the ever popular Terry Wogan's BBC Radio 2 morning show, Wake Up to Wogan. Standing for Terry's Old Geezers (or Terry's Old Gals), the TOG is apparently defined as '{someone who has} a state of mind recognised by many, as that feeling of being old before your time'.
Playing up to a stereotype of Volvo driving, flat cap wearing grumpiness, the TOG's are but mere servants of the TOGmeister as they refer to Wogan, but a surprising number of them have set up websites, with entire 'in-joke' glossaries, and pictures of the now famous TOG car stickers, which as my ex-housemate found out are next to impossible to remove.
So as not to offend the young'uns there is also a TYG, or Terry's Young Geezers (or Terry's Young Gals) Kids Club, for those under the age of 40.
Sources include:
http://www.bbc.co.uk/radio2/shows/terry_wogan/tog2.shtml
http://www.togs.org/togs/home.htm