Buffeting is a high-frequency instability, caused by airflow separation or shock wave oscillations from one object striking another. It cause by a sudden impulse of load increasing. It is a random forced vibration.
Buffeting. An irregular oscillation of any portion of an aeroplane distinct from 'flutter', because it is produced and maintained by the eddying wake behind some other part of the aeroplane, ...
BUFFET - Irregular, often violent, oscillations of an aircraft's structure, caused by turbulent airflow or conditions of compressibility.
CAA - Civil Aviation Administration (U.K.).
There is buffet in the control column (not the airframe).
Recovery from a tail stall is exactly opposite the traditionally taught wing stall recovery.
Pre-stall buffet
When the AOA of the wing increases the separation point moves forward and the streamlined airflow wil become turbulent and separates from the wing. This turbulent wake then meets the aft fuselage and tail section of the aircraft.
At this point we begin feeling the buffet or the interruption of air flow over the wing. In most airplanes the buffet will be prominent enough to "feel" it in the seat of your pants and in the control stick or yoke.
It's not enough to periodically slow the airplane enough to get a buffet and then recover.
Stalls in approach mode give plenty of buffet warning. In departure mode, the superdramatic nose-up angle is impossible to ignore. Jones asked, 'Can you imagine anybody not noticing they're at the stall in this airplane?
The point (altitude) at which, as the indicated airspeed decreases with altitude, it progressively merges with the low speed buffet boundary where pre-stall buffet occurs for the airplane at a load factor of 1.0 G.
Do everything gently and stay relaxed. Keep one eye on the air speed and the other on the ball (or horizon and wing tips). Notice everything: buffeting, stick back pressure, control stops, "oil canning" or other noises....
At the first sign of wing buffet, however, elevator back pressure is released and the nose gently lowered to just a few inches below the horizon. Power is also applied to accelerate stall recovery.
 See also: Flight, Aircraft, Power, Structure, Direct
  
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