The act of using the map on the app Snapchat to see which of your friends are hanging out when and where. Also a way to see when someone was last on their Snapchat.
Camryn : Do you know what Jill is doing today?
Addie: Yea, she is with Sabrina at Burger King as of 5 min ago
Camryn : How did you know?
Addie: I was just snap stalking Jill
Addie: Yea, she is with Sabrina at Burger King as of 5 min ago
Camryn : How did you know?
Addie: I was just snap stalking Jill
by LionMan18 December 7, 2018
Following a person and snapping your fingers. It works better with larger groups of people, originates from West Side Story.
by Emily W. June 3, 2006