What is a ‘Ping’?
Ping is FR slang for calling someone to a thread by putting their name in the To: box.
I think it came from The Hunt For Red October.
The other thing you’ll often see is a Bump, BumpTo The Top, or BTTT.
Every time a thread is commented on it goes to the top of the recent posts list and is easier to find.
A ping calles specific people to a thread, a bump makes a thread more visible to everyone.
Welcome to FR! Feel free to ask any question, any time. (Sometimes you’ll get a straight answer, sometimes heavy sarcasm...)