Learning a Limerick!

A limerick is a five-line poem written with one couplet and one triplet. If a couplet is a two-line rhymed poem, then a triplet would be a three-line rhymed poem. The rhyme pattern is a a b b a with lines 1, 2 and 5 containing 3 beats and rhyming, and lines 3 and 4 having two beats and rhyming. Some people say that the limerick was invented by soldiers returning from France to the Irish town of Limerick in the 1700's.

https://mail.google.com/mail/?shva=1#mbox

Limericks - The History
Variants of the form of poetry referred to as Limerick poems can be traced back to the fourteenth century English history. Limericks were used in Nursery Rhymes and other poems for children. But as limericks were short, relatively easy to compose and bawdy or sexual in nature they were often repeated by beggars or the working classes in the British pubs and taverns of the fifteenth, sixteenth and seventh centuries. The poets who created these limericks were therefore often drunkards! Limericks were also referred to as dirty.: http://www.poetry-online.org/limericks.htm

Limerick
There was an Old Person whose habits,
Induced him to feed upon rabbits;
When he'd eaten eighteen,
He turned perfectly green,
Upon which he relinquished those habits.

--Edward Lear