Brazilian Manflower
Titty-fucking a girl backwards so your ass is lined up with her mouth, then blowing a fart off in her mouth. A particularly dirty individual might be able to leave a brown ring, or 'flower' around the girl's mouth.
From afar, it appeared as though the woman had grown a mustache and goatee, but it was soon apparent she was the recipient of a vicious Brazilian Manflower.