Noun
(animation) An early version of an animated scene, consisting of rough sketches that are photographed or scanned.
An informal test of whether a girl needs to wear a bra, based on whether a pencil placed in the inframammary fold stays in place or not.
(South Africa, historical) A method of determining racial identity, based on how easily a pencil pushed through a person's hair can be removed.
Source: en.wiktionary.org