This is generally how I memorize the bits of scripts that are from my perspective arbitrary. It doesn't even need much of a connection to the text itself.

E.g., one line I had trouble with was "Come, sirs", which I kept paraphrasing as any of a dozen phrases that basically mean the same thing, until I associated it with brothels for knights. Now my cue comes along, I know I'm leading a group of people elsewhere, a bunch of competing ways to say that get activated, the brothels for knights concept gets activated along with them, it reinforces "come sirs" and that's what I say.