Verb
1. hit with a pinging noise;
"The bugs pinged the lamp shade"2. 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"3. make a short high-pitched sound;
"the bullet pinged when they struck the car"4. contact, usually in order to remind of something;
"I'll ping my accountant--April 15 is nearing"5. send a message from one computer to another to check whether it is reachable and active;
"ping your machine in the office"