Having a very powerfully visual trip after taking a hallucinogen. Be it mushrooms, acid, absinthe, etc...
Taken from the SouthPark episode Sexy Action School News, when they go into the pharmacy to buy some cough syrop to 'have some ideas' The pharmacist tells them "if you really want to trip balls" and suggests a certain brand of cough syrop to them. The episode later demonstrates said tripping of balls.
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)