This is a gadget sonnet form invented by Mary Lou Hearly, aka Mlou on Allpoetry.com.
The Relaxed Sonnet is: A quatorzain made up of alternating iambic trimeter and iambic dimeter lines with the final couplet being iambic pentameter Rhymed: abababcdcdcdee, where the a-rhymes are feminine.
Hold the Iamb Chops (Relaxed Sonnet)
He seldom feels contented I’d have to say, when iambs are presented the normal way. the sing-song seems demented -a sound’s cliché! He’s published. He’s acclaimed, he understands that meter must be tamed and so he plans to truncate unashamed per his demands.
That doesn’t mean that you and I must fear the lovely lilt the common man might hear.