getting the name of something wrong whilst showing yourself up.
(this came from when someone was standing in makro thinking of the name for insect killers, and said 'Bee Shutter')
Saying 'bee shutter' instead of insectkiller ((you do not have to say bee shutter to have a bee shutter moment))
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. Penguin Books,1992. p. 38)