A Cleavland Steamer gone awry. While in the act of deficating in ones mouth, the partner on top will miss the target, often releasing all over his partners face, often killing the mood. There will of course be the opposite effect if the partner recieving the act is on sick mother****er.
"Dave was steaming me up when he lost it too soon. It got in my eyes and stung like a bitch. Stupid prick."