This is when a female is laying on her back and a man stratles her with his gouche region on her mouth. From here, the man lifts his erect penis in to the air, and flicks it onto the forehead of the female. If done properly, the penis should bounce upward with force. You can repeat quickly so it makes the sound of a snare drum, or go in a slow beating motion until there is red marks upon the forehead.
"Yo bra, my bitch was actin' up so I wiped out my manhood and gave her a The Roland Drumroll."