To consistently, persistently, and usually annoyingly follow someone around when you shouldn't be. Usually a result of
a) having too much time on your hands
b) having an unhealthy obsession/fascination with whatever you're stalking

Or what a lion does to its unsuspecting dinner when it's not sleeping in the mighty jungle.
1) Guy #1: Jim, it's like Amy's mission in life is to be the world's best stalker. She's always stalking people.
Guy #2: First off, my name is Craig. Secondly, I don't care. And finally, for the 73rd time, I DO NOT KNOW YOU!

2) In the jungle, the mighty jungle, the lion stalks his prey
Unsuspecting, they converse dumbly 'bout what they did today

Jim: Boy, I love not being eaten viciously by whoever rules this amazing place, don't you Todd?
*they are then gruesomely devoured*
by billygoatofdoom(again) July 6, 2011
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Photographing people or people's houses without them knowing, then posting the photos on Facebook and tagging them as that friend.

More specifically, one can stalk while in a public setting, like in school or amongst friends, typically by pretending to text on a cameraphone, but actually taking a close-up and often unflattering photo of the person. This is best done with the camera feature on a Blackberry device.

Stalking can also be the practice of driving around (in cases of severe boredom) to various friends houses, awkwardly taking a picture of their house, then posting and tagging the photo on Facebook. This is an effective way of creeping out your friends, killing time, and wasting gas. Nonetheless, it is awesome, and credit should be given to the creator of stalking: Devina Parmar.
1. Devina was really bored in IBBM, so she decided to take out her Blackberry and stalked everyone around her.

2. Whenever I'm with Devina, we always wind up hopping in my car and stalking everyones houses.
by stalkyoface June 17, 2009
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New form of follow on twitter courtesy of Battlecam.com
"I'm stalking Alki David on battlecam."
by JuggaloElmo August 19, 2011
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The act of following repeatedly

The act of sitting outside the stalkees' home

I was stalking Mike today.
by rpv94 March 24, 2009
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letting someone know how much you love them
"shes out stalking her boyfriend"
by chyenne13 October 14, 2008
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