I'm in Ireland. WTF is a BBQ?

Imagine you're boiling potatoes.

Get rid of the water. Replace the pot with a metal grill. Replace the potatoes with meat. Pretty much that.

Tip o' the hat to you, sonny!

Same and I real bbq quite frequently and know many people that do and have never heard word of this

OK, I think that covers all the possibilities.

Not quite. I've heard of it, but nobody I know has.

Nobody I know knows whether I know about it or not.

You should make a habit of sharing your knowledge