I know what ping is.
YYY: Did you have a good computer science teacher?
xxx: Not quite) I am "ping" every night
Yyy: What did he invent this time?
xxx: All the 3 years that we live together every night, and often several times a night, he wakes up and in a sleepy state touches my chest and falls asleep again with a smile on his face) Here and explained me the meaning of the word "ping")