This is the biggest riot of English poetry, invented by someone by name Clerihew. It’s basically a parody of both eulogy and limerick. The rules for writing a clerihew are
1. It should be 4 lines long only
2. It should be biographical and should always poke fun. It should not be a satire or diatribe.
3. It should never have same line lengths and tough words.
4. Rhyming sequence is AABB

The best example,
Sir Christopher Wren Said,
“I am going to dine with some men.
If anyone calls
Say I am designing St. Paul’s