"probably a prank".
and this is why I live on wine and cigarettes.
He may just be saying "chill". Lots of good things to be said for taking a break, having some fun, etc.
Blah blah "fisa".
Seems like you're able to internet. Get curious, do some searches. The FBI Vault is a great place to dig around in, for example. Enough information IS available to be able to piece together a pretty clear picture without having someone hold your hand or spell it out for you.