I was wondering the same thing. Crespare means "to curl" in Italian. So it means... Who will curl the curly? I suspect it's some sort of pun on a well-known Latin phrase, but I have no idea what it would be.
Don't be misled: the -are and -ire endings mark different conjugations (per my other comment, a Latin "crespare" would have become "créper" in French, which means "frizz" or "crimp" and is thus almost certainly cognate to your Italian word, but not to the "crespit" of the OP).
The phrasing is very similar to "quis custodiet custodies" - who watches the watchmen - which is a very well known phrase. The most I can make of this is "Who $foo's the $foo'ers".