Slip and Dip

Slip and Dip refers to the act of shoplifting by slipping a larger object into a bag.

Person A: Guys I need a notebook for school but I don’t have any money to get it!
Person B: Well, why don’t we just slip and dip?

Sleeve and Leave

Refers to the act of shoplifting by sliding a small object into the sleeve of a hoodie, jacket, or sweater.

Person A: Guys I need pens for school but I don’t have any money to get them!
Person B: Well, why don’t we just sleeve and leave?