gravel blower
A person, being of vertically challenged stature, who releases noxious gasses from below the belt, resulting in a cloud of small rocks and other debris being blown around by the release of said gasses. The act of blowing up gravel and various debris when releasing flatulence so close to the ground.
"Did you see what happened when Shelly farted while walking on the dirt road? She's so short that rocks started flying everywhere!"
"Ha ha, yeah, she's a real gravel blower!"
"Ha ha, yeah, she's a real gravel blower!"