When someone goes to the bar to order a drink but also orders a shot to take quickly and secretly. Often the person doesn't think other people notice but they do. They order the shot and take it at the bar leaving behind the shot glass evidence that the shot ever occurred.
Have you noticed Eric has been ordering a secret squirrel shot with each beer he gets at the bar?
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)