To take a dump on the chest of your sexual partner.
No one knows the actual origin of this word. Most think it is because there is a
brown stripe on the orange helmet of the Cleveland Browns. However, a lesser known cult leader arrested in 1990 became synonymous with the act when he told his wife to drain their tub and remain inside, laying down. Jeffery Lundgren, leader of the kirkland
cult, then got in the tub. He squatted over her and took a dump. Upon the
cult members' arrests in 1990, Southeast of Cleveland his wife reported this act to
police, among other maltreatment and abuse suffered at his hands. Jeffery Lundgren was executed in 2006 for killing an entire family and a few other crimes. Some
cult members including his wife are still in prison today for these crimes.
After the cults arrest, the property owner of the home where the
cult stayed took possession back of his property, after receiving only 2 mos rent. Upon entering the property he found a 1ft thick pile of poop in his basement among other things that gave validity to the claims made by Lundgren's wife.
The term Cleveland Steamer was then first documented in 1995 on a website called Usenet and then used again on a
Family Guy episode in 1999. It then became the most
popular way to refer to crapping on someone's chest during sex. This is the
true origin for the phrase.