Sexual intercourse, distinguished by rough and forceful thrusts from the male/phallus counterpart, who is also taking the dominant and lead role. The act is in no way malicious.
Betsy told her man, Nick, "Please, I really need you to fuck the daylights out of me. This is what I really need". Nick replied, "Lover, I give you my word, I will powerfuck you for as long as I can".
A device into which one can store energy, as you might with a regular rechargeable battery pack, but in this case the energy is one’s directly deposited flatulence.
I got myself a fart powerpack and have made a commitment to decrease my energy use by increasing my consumption of beans.