A combination of the words smile and surprise. Involves smiling at an unsuspecting victim, and then entering an extremely severe mode involving spastic motions going through your body and face. If the victim spasms back at you, then they are truly one worth befriending, but if they dont, then its time to move on to your next victim. This rare practice was pioneered at martino's hot dog stand at summerfest '06. It is rapidly growing in size and power. The sheer velocity of the smurpile may send its victim in to involuntary convulsions, so smurpile with great care and caution
Helen keller was an enchanting young lady before she was ferociously smurpiled in her garden at the young age of 7 years.