The act of masturbating at high speeds to achieve climax in as little time as possible. Best used when you are unsure of how long you will be alone. Sound effects are encouraged but not necessary.
Flatulence that emerges with such a powerful velocity and ear-shattering roar that people nearby have been literally startled to death.
I had a cousin who was a powerfarting champion who once, at Thanksgiving, powerfarted at the dinner table and some folks dropped involuntarily down into the fetal position, thinking it was nuclear war!
A foolish or incompetent person. Originally found on the back of a bus in Japan "Powertard Braking System"
It ironically sounds like a cross between power and retard and hence powertard was born