originated by Brandon...also known as a "credit card"
Slice is when your friend sneaks up from behind you and stiffens up their hand and makes an attempt to slice their firmly straight hand through the victims butt crack.
Lynn: I was walking down the hall after government and Ashley sliced me! Then Zach came up and sliced her!
One eigth of Marijuana, as there are 8 piece in a pizza. It is equal to 3.5 grams. A very common term used because "slices" are often the amount bought to be smoked. Im not saying you cant buy more :).