Where a female lays on her back while her male partner proceeds to have sex with the female partners breasts. During the back and forth motion (Similar to that of a STEAM engines wheel cranks) the male proceeds to defecate, leaving a shit smear track, much like a train track, leading all similarities to coin the term "Cleavland Steamer" intended to allude to a Cleavland Steam Engine.
"I knew it was time to give Miranda her cleavland steamer, when she said 'All Aboard!' and I also added the obligatory 'Chugga, chugga' and 'Choo choo!' noises all the while.'