It is a four line stanza form with as many multiples of four lines as you care to include.
three words in the first line
two words in the second line
one word in the third line
three words in the last line.
The first three lines set up a situation. The last line delivers a summary or punch line.
Examples:
MY LOVE
Ah, my love,
your sojourn
sweet,
alas, too brief.
by Jean Lewis
and three by me.
HOME ALONE
They have gone
and left
me.
I am free!
by RGarfield
COUPLET
Two souls entwined
as one,
forever;
or, until divorce.
by Rgarfield
WEEKEND
"Workweek is done.
Come on
home."
Job Jar Beckons.
By RGarfield
Welcome,

