The act or acts of defecating on your sexual partner's chest. In particular, the feces should be projected to dump starting on the partners belly slowly steaming your way up the chest and into his/her mouth.
by Raw Doggie September 15, 2003
(No one has gotten this right yet!) An official "cleaveland steamer" is shitting on a girl's chest while receiving head, plain and simple. Now, there are certain ways to tweak the technique if you will. For instance, you can be having sex, and right before you're about to cum you pull out to put it in the girl's mouth, and then as you're cumming take a shit on her chest (bonus points!). It all depends on how creative you wanna get.
by Xaphod January 13, 2006
Is where one person defecates on another persons chest, then sits down and rocks back and forth, like a steam roller.
"Things were getting hot and heavy in the Japanese fetish parlour, one of the masseuses gave Kow Chung an extra dirty Cleaveland Steamer."
by Dragons_Prayer May 01, 2014