Definition 1 of 1
Pref allows you to have longer showers, get iced buns, get two pieces of chicken for dinner, not get ragged and much more.
Pref can be either you birth-right (because you have an older sister in class 12) or you can buy pref by bribing the canteen dudes.
Pref is non-exchangeable and is strictly a limited time offer.
Lawrence School boy 2- from the bakery.
Lawrence School boy 1- but we didn't have jam bun for tea today...
Lawrence School boy 2- yes I know, I have pref.