@memad
Original udru phrase : "back maar rahi hai !"
"Back" is short for backfire. Backfire happens when unburnt fuel ignites while exiting the exhaust system. When an engine hits the rpm limiter, it sounds a little bit similar to that. The guy in the Land Cruiser was also small brain, so he used that phrase.
If you were expecting something 53xual, congratulations you have a small brain with the expensive (will cost you one day) optional filth kit installed.