That's the name my nine year old grandaughter gave to the set-up we play to study checkmates.
It's simply all the white pieces against a lone black King. I'm able to give her a pretty good fight while she tries to checkmate me, but in the end, she always wins. She really enjoys beating me, and learns quickly about using different pieces to limit the King's moves and to force checkmate.
My chess buddy and I decided to make a contest out of the position, where we play two boards simultaneously, each of us with a white army against a lone King....first player to checkmate wins.
I'm posting this to see what others think of it as a teaching approach, and also because I'm wondering what is the quickest possible checkmate against accurate play.
By the way, if you're lucky enough to find yourself in a position to teach a young person the game of Chess, do it! It's big fun.