Acting like you want to take a picture with someone, but record a video.
Person 1: "Oh she was mad the other day. What happend?
Person 2: "Of course i pulled a Ghetti on her
The word ghetty is slang for ghetto. When someone says they are going to get ghetty, it means they are going to be doing something ghetto. Like smoking jank weed or committing a crime/felony.
Girl, we getting ghetty tonight!