mc5 - Cleri Who's Who

Four lines rhyming AABB - scansion, rhythm, metre and all that malarkey is as random as-u-like. Oh yes - the featured subject, usually a person, is mentioned in the first line.
Here's a full and frank(ly better) intro by Thos along with some that were made earlier.

But his essential commitments to his studies at The University Of Bath mean his sojourns here are no longer as regular as they used to be

But an ex-MCer is something I am sure he would refuse to be.

Napoleon and Josephine

Software

Apparently, at night, together would ne'r be seen

He'd tell her "DON'T WASH"

Juxtapose

And then this poem ended, the last line distinctly lacking panache.