An example of this is the term groovy which is a relic of 1960's and 70's American hippy slang. Nevertheless, for a slang term to become a slang term, people must use it, at some point in time, as a way to flout standard language.
Cycling is a highly effective form of exercise. It requires a lot of energy, builds lean muscle mass, and improves your strength, cardio capacity and endurance. However, cycling won't specifically burn belly fat. It will certainly help to reduce your overall body fat, but since spot reduction is a myth, you will have to be patient for your belly fat to burn off with the rest of your fat.
Cardio Machines First. Increased calorie-burning physical activity, such as jogging on a treadmill or pedaling an elliptical, will help prompt belly fat loss. Some of the first fat you lose when you exercise is dangerous visceral fat, but subcutaneous fat will reduce too, with time. Aim for 30 to 60 minutes of moderate-intensity work on a cardio machine of your choice most days to help start the process of losing fat, including at your belly.