Which is incorrect. Throwing a steak on the grill is not BBQ.
Barbecue or barbeque (common spelling variant)[SUP][/SUP] (with abbreviations BBQ, bar-B-Q and barbie), used chiefly in the United States, Canada, the United Kingdom, France,[SUP][/SUP]New Zealand and Australia (called braai in South Africa) is a method and apparatus for cooking meat, poultry, and occasionally fish with the hot smoke of a fire, smoking wood, compressed wood pellets, or hot coals of charcoal. In the USA to grill is to cook in this manner quickly, while barbecue is typically a much slower method utilizing less heat than grilling, attended to over an extended period of several hours. In Australia to barbeque (most common spelling in Australia) is to quickly cook food on a heated metal plate.The term as a noun can refer to the meat, the cooking apparatus itself (the "barbecue grill" or simply "barbecue") or to a party that includes such food or such preparation methods.
The term as an adjective can refer to foods cooked by this method. The term is also used as a verb for the act of cooking food in this manner.
Barbecue is usually done in an outdoor environment by cooking and smoking the meat over wood or charcoal. Restaurant barbecue may be cooked in large brick or metal ovens specially designed for that purpose.
Barbecue has numerous regional variations in many parts of the world.
Like I said. It can mean many different things.