The sexual act of defecating on one's partner. Particularly if the excrement is massive and remains undisturbed in it's
cylindrical form. Origin: The act in itself is to
populate your partner's chest with large hot steaming logs of poo, this is in direct correlation with the event of
a wildfire in the sierra forest which would expectedly result in hot and steamy giant sequoias populated throughout.
Becky to
Alicia: "Oh my god. I think
tonight's the night that
Bobby is going to give me my first Sierra Wildfire. I hope they're big."