Definitions for tappingˈtæp ɪŋ
Random House Webster's College Dictionary
the act of a person or thing that taps or strikes lightly.
the sound produced by this.
Origin of tapping:
the sound of light blow or knock
"he heard the tapping of the man's cane"
An act of making a light hit or strike against something.
A guitar technique in which the strings are tapped against the fingerboard