Sometimes, scores contain notations like "fff", which presumably indicates that the section in question should be one dynamic level louder than "ff", or "fortissimo".

In my limited musical performance experience, I've heard "3 effs" and "fortissi-issimo" used for "fff", but these sound a little bit informal to me (plus the latter one is obviously faux-Italian). 

How are these notations (with more than 2 "f"s or "p"s) pronounced when spoken?