This phrase is one of the lyrics from a song called "twist", which is by the nu-metal band called "korn." Many metalheads and emoswill likely shout this phrase at you if they think you are swag enough, so respond back with more lyrics from the song. If you are lucky enough to get this shouted out at you, you must be one swag person and the person who shouted it at you might want to start a friendship.
metalhead: TWIST!!!! EH NAH ER RAH AH AH
You: TWIST!!!!!!!
*you and the metal head then walk away and be metal together*
You: twist EH NAH ER RAH AH AH
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)