A pubstomper is a name for someone who usually goes in alone or with a group of people to a public server on a game and complete trashes them.
It often originates from games like Dota and Team Fortress where there is large variety in people's skill levels, some being amazing and some being downright awful.
Pubstomper: Hey manwanna go pubstomp some nubs?
Pubstomper 2: Sure!
Nubs: ermahgerd u faegit imma report u 2 gaben he wil ban u 4 lyfe u hakr!!!!111
The fleshy mound of a woman's vagina, above the lips of the labia. Latin for "pubic mound" and sometimes just called the "mons". The mon pubis protrudes from the body, some more than others, (particularly in women who have more girth), and is covered in pubic hair.
Moaning softly, Nina slowly removed her panties, running her palm over the mound of her mons pubis before slipping her moistened fingers between the lips of her labia and stroking her hardened clitoris.