If someone asks you to go somewhere, and you don't want to go, you answer "NT Bud!" meaning "Maybe later or something."
Also used to discourage. If someone says that they'll be able to touch rim (basketball) before you do (and you're taller than them,) you can say "NT Bud!" as "Not with your height!"
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)