The line in a mixed genderconversation that a woman should avoid crossing, in which she veers into topics gentlemen simply dont want to discuss.
"Hey Bill, how awkward is it that every time we talking to Jane she starts discussing her menstrual cramps."
"I know, John, she's always crossing thre testiculine"
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)