The act of quickly moving your hand on an intercept course with the genitals of a nearby member of the opposite sex. The swift act of aggression is named for it's inspiration, Hitler's "lightning war" on Poland. Here, the hands are the Panzer division, whilst the genitalia are poor, helpless Poland. Poor, poor Polacks.
Holy Shit, man! Your Blitzkreig just went through that emo chick! Don't blitz such frail, frail, frail, crying people in the future! Don't touch the emos!