This means that the person really hates you and doesn't want to be around you. If someone says this to you, you should probably think of a comeback but if you can't just walk away like you think you're hot.
person 1: do you want to go on a date with me?
person 2: no sorry
person 1: I hate you so much go suck a dick
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)