In 1855 a European goat farmer by the name of Hoek Hogan raised a particularly disgusting goat. This goat quickly became famous for being the most horrific smelling and ugly creature to wander the fields. It is legend that his scent could be detected from over a kilometer away (.6217 miles).
To compare something to hogan's goat is considered a great insult.
"Timmy hasn't bathed in a week. He smells like Hogan's goat"
"She wanted me to eat her pussy, but it looked like Hogan's goat. So I ate out her butt instead"
Hogan's Goat is a 1965 play by William Alfred. (Wiki). The common phrase is "This makes Hogan's Goat look like a precision instrument!" It is less about being 'totally f*****d' and more a ludicrous, convoluted lampoon of politics in general.
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)