Whether or not you NEED a cheat meal should be determined by your weight/bodyfat, as well as your lifts, as well as your macro breakdown day-to-day. I am smack in the middle of a bulk, so I'm getting a ton of nutrients, and therefore my hormones are cool. If you're cutting (I assume you are?) then you'll need to have a refeed every 4-7 days, depending on the things I mentioned.
Right now, I do a small refeed once a week, consisting of 2 or 3 cups oats, a shitload of blueberries, and a piece of fruit, but I'm on the Anabolic Diet. Obviously every different diet will require a diferent approach to the refeed. And as far as cheating goes, I'm with CT and other experts - you shouldn't plan to cheat on your diet. Unless it's your birthday, you just walked off stage, etc...you shouldn't give yourself permission to eat shit, some exceptions included lol. Hope that helped.