When one thinks he/she is the smartest person in the room and feels they have to explain everything that comes out of their mouth to the "dumb" ones.
Nigel: We should call our dog Pavlov.
Tammy: Lol
Nigel: You know cause every time the phone rings he thinks it's time to eat.
Tammy: Did you really have to use "teachertalk" with me?
Nigel: Thought you didn't know.
Tammy *frustrated after being done this way day after day*: I'll ask you if I don't know something. Please don't proceed to explain everything to me. I'm not stupid.
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)