I think you are thinking of the phrase  the other way around , which does essentially mean the opposite, but in a specific way. The specific nature of the other way around is that it means that doing what you say in the opposite direction is correct, not necessarily the exact opposite.
You can offer your kitten either dry food, canned food, or both. Be sure to choose food which is designed for kittens. They require a diet which is especially rich in protein, calcium, and other nutrients. Cat food that is for adults is not sufficient.
Withhold food (but not water) for 24 hours (12 hours for kittens) to give your cat's digestive system a rest. Then feed him feed him a bland diet of 50% boiled rice and 50% chicken or 50/50 boiled rice and cooked hamburger for the next two to three days. Do not feed any dairy products.