tl;dw: I made a Python script that generates passphrases.
$ pw
child gold myself experiment
$ pw -n 5
rising cat immediately example
dirt alone truth thus
difficult weak minute butter
pan proud shelf join
among shade exercise so
$ pw -l 8
vegetable aside plate development while sport electric chemical
$ pw -s # For things that don’t like spaces
fogdinnerreceivehigh
It uses Python’s random.SystemRandom (which pulls random data from /dev/urandom) and a list of common words from this website, just like passphra.se.
It’s on GitHub: Sidnicious/pw.