Level of confidence, ability and/or prowess, particularly with the opposite sex; game.
Derived from Dragon Ball Z, in that the greatest warriors in that anime would have ridiculously high power levels.
So you spent $200 on dinner, took her ass shopping, helped her move out her apartment, and you didn't get no poodabab afterwards? Man, your power level real low.
MMORFG term. To increase ones level at a rate which is faster than the normal accepted rate.
Grassie: Damn this shit is lame, i need to power level this character so i can own some fools.