Da shortened version of Fo' Shizzle mah Nizzle. Allows you ta say it faster. Means For sure my nigga. Just a cooler way of sayin' it really. Made up by Snoop.
Person: Wanna go ta de store wit me?
Other Guy: Fo' sheezy mah neezy, lets roll...
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.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"