kopogás

Noun

 * : knocking an act in which something is knocked on, or the sound thus produced
 * 1) knock an abrupt rapping sound, as from an impact of a hard object against wood
 * 2) patter, clatter a light, soft tapping sound
 * 3)  engine knocking, detonation a type of improper combustion in gasoline piston engines
 * 1)  engine knocking, detonation a type of improper combustion in gasoline piston engines
 * 1)  engine knocking, detonation a type of improper combustion in gasoline piston engines
 * 1)  engine knocking, detonation a type of improper combustion in gasoline piston engines