Settle on a single subject that provokes, annoys, exasperates or infuriates you. This subject will be the topic of your rant poem.
Brainstorm a list of reasons why your subject maddens you. Jot down a list of 10-20 specific details about your subject that drive you bonkers.
Decide what tone you want your poem to convey. How do you want your poem to make the reader feel? You might want to make them laugh at your misery, or cringe at your excruciating details.
Choose the details from your brainstorm list that you think will stimulate your audience, and craft them into sentences that reflect your tone. For example, as stated in a handwritten rant called "Airline Complaint," the writer states, "I constructed a stink shield by shoving one end of a blanket into the overhead compartment," which is a funny way to rant poetically about an airline lavatory. (see Reference 1)
Write your rant poem by stringing sentences from your brainstorm together in chronological order. Rant poems, like prose, contain sentences and sentence fragments. Make sure each complaint flows to the next logically, like sentences do in paragraphs.
Break the lines of your poem where it feels appropriate. Prose poems like the rant don't need dramatic line breaks, as they read almost like a short story.
End your rant poem with the single most annoying complaint from your brainstorm list. Rant poems usually run from one to two pages in length.