It means "Just For Kicks."
The message said "To put the first man on the moon by the end of the decade".
Just fu!#ing kidding
No, JFK is not single.
if you mean jfk it's lbj-(johnson)
Probably 'Just F****** Kidding'. Check Wikipedia.
JFK and Jack
The answer to this depends on who 'we' are. Also, it depends upon what you mean by 'changes'. (do you mean politically, culturally, economically etc.)
jfk jfk jfk
Yes, JFK had cars.
JFK is a/an Politician,journalist
yes JFK had a daughter
j.f.k. are the initials of jfk