Tim,
You weren't that far off really but NNMGAT is that ever present Bay Store group known as Neurotic Nimrod Muskie Gurus Abusing Technology.They meet regularly at the Barge as well but heck,they even have regular winter meetings throughout the midwest they refer to as 'Shows'.
Some MGWD&K members,not me of course,like to argue that 'Neurotic Nimrods' should be changed to 'Numb Nuts' but it is what it is.