Also known as a "Dick Slap". A game similarly to "tag" or "got you last". Predominately played among middle-school and high-school students, and in some cases in later job experience when working with immature people. The object is to catch your opponent off guard with the back of your hand in the genital region, with a quick "flick" like action of the wrist. Be aware that you may leave yourself open for a dick flick of your own.
Jeff: "Hey what is wrong with Ben?"
Mike: "Oh I just got him with a dick flick"
Jeff: "Ouch man that's harsh"
Mike: "Yeah he won't be getting up anyti..."
Jeff: "Hurst doesn't it?"