S: (v) tap, rap, knock, pink (make light, repeated taps on a surface) "he was tapping his fingers on the table impatiently"
S: (v) pink, ping, knock (sound like a car engine that is firing too early) "the car pinged when I put in low-octane gasoline"; "The car pinked when the ignition was too far retarded"
S: (v) pink (cut in a zigzag pattern with pinking shears, in sewing)