And it's pronounced yeero for the Gyro if we are talking about the Greek food. I know this since its one of my favorite things to eat and I have been schooled on pronouncing it wrong a few times at some authentic Greek places many years ago. gIrO seems to be acceptable and it's even been adapted in some areas.
I always get the lamb and not the beef. I like to add a small amount of ground crushed red pepper to my Gyro. I'll add other stuff too, but you guys might think I'm crazy, I like a small amount of ranch and ketchup on top of the tzatziki sauce. The ketchup kind of tones down the heat from the red pepper and the ranch just gives it extra flavor. Tiffany's, that little famous dive over near the stratosphere surprisingly actually made a really good Gyro back in the day, they packed on the meat and you couldn't beat the price. Freemont street used to have a Greek place with really good Gyros(that's one of the places I was schooled on the correct pronunciation). This is making me hungry, time to order a Gyro for dinner.
p.s. Gyro Time in Vegas sucks IMO. POP'S FOR Philly steak sandwiches and other various items is super delicious.