Many years ago I took an introductory free (+fuel) flying lesson in a dual-control small aircraft (instructor in right seat) at a small city's municipal airport. There was a third passenger in the back. Near the end there was a report of a helicopter near the airport but there was some confusion as to the location.
When the instructor took us back down they did so in an unusual and exciting way, possibly to impress the third passenger, possibly trying to get back to the ground as quickly as possible because of the situation with the helicopter.
We were descending pitched substantially down, looking at the ground in the distance and with a startling amount of yaw with the right wing advanced by (estimate from memory) 20 degrees!
Is there a name for a descent like this? Are there standard reasons for it?