(v)To be in a crowded area, such as a school hallway, and to call out someone's name in a voice other than your own, only to hide when the unsuspecting person turns around, completely baffled. At this point, you yell "sniiipe!!"
The quintessential snipe:
Me: Conor Murphy!!(said in a high pitched, gay voice)
Conor: *Turns around with a dumbfounded look