PMS, or Preminstrel Syndrome relates to the physical and psychological symptoms, including reciting poetry, talking in Shakespearean language, strong attraction to flamboyant clothing and stringed instruments, and occasional outbursts of heralding, that occur from 2 to 7 days before the onset of minstrelization.
"Oh, he's just on his minstrel cycle, nothing to worry about."
Adam: Shes over on the corner trying to earn money off of
John: Really? She isn't very good.
Adam: Cut her some slack, shes going through her minstrel cycle.