Noun: In Gears of War multiplayer, an action that involves equipping your Lancer and following an unsuspecting foe's every move for at least fifteen seconds and finally cutting the poor bastard in half once he stops.
ChefDog: (to teammates) Don't kill the drone, he's mine
Ymecca: You're right behind him, whip out the shotty and blow him to bits
Bigguy2: (to ymecca) Shh. He's chainsaw stalkin him. (ChefDog cuts drone in half as he picks up the boomshot
Dude.
I had a limb hanging over my roof, and I couldn’t reach it to remove it..if only I had a chainsaw on a stick. I cut cut that rascal and drink me a beer.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.