A clerihew is a biographical and whimsical verse consisting of two couplets and a specific rhyming scheme, usually aabb. The poem names a well-known person /character who is introduced within the first line. The lines are irregular in length.
In 1990, the Ringing World ran a competition for Clerihews about ringers. Below is one of the submissions.
The composer, Plutonium Cox,
could get music from the method "Fort Knox";
He invents elementary lines, which he peals away,
but won't leave the table, and call it a day.
Additional clerihews are welcome here: