Many upon many BBQ cuisines and foods.

Is grilling considered BBQ? How do you classify, for instance, Korean BBQ? Or yakitori or kushiyaki or robatayaki or yakiniku? Or satay or kebabs? Or churrasco or asado? Or tandoori?

Is American BBQ principally cooking via smoking? Or is indirect cooking with charcoal ok?

There's a whole bunch of spit/rotisserie meat cooking methods such as doner kebab or al pastor or gyros or shawarma - are those BBQ?

If you spit roast whole hogs (lechon asado) or chickens (rotisserie) is that considered BBQ?

Finally, is kalua pork / luau pig from an imu BBQ?

Again, many upon many ways to BBQ worldwide.

David