A shlaverage is a penis of average/normal length, not too big not too small. The length of it can be measured between 4 and 7 inches but this can vary depending on your culture. Usually used when the correct length is not known but the word can roughly describe the length.
I was talking to my friend Billy Bob at the time when i was feeling a bit scalverage while i was noticing that his beard was a tad bit longer than usual; I was feeling scalverage.
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)