A heterosexual female who is over six feet tall, not particularly attractive who possess bigger pipes than its male victims. Usually eager to engage in sexual activity with limited effort.
Activities and hobbies of the beastress include but are not limited to: basketball, softball, soccer, volleyball, shotput or any other activity that involves grunting.
"That girl you fucked last night was a beastress."
"Sorry I had to give into the beastress."
"I thought that beastress was gonna eat me."