What do you call a pencil with two erasers?

This joke sharpens our wit with some clever wordplay, a classic comedic mechanism where a single word or phrase is used to suggest two different meanings at once. The punchline, "pointless," brilliantly plays on the literal and figurative. A pencil with two erasers would, of course, lack a writing tip, rendering it literally without a "point." But it also implies that such an object would be utterly useless, or "pointless," in the sense of having no purpose. The humor springs from this delightful linguistic somersault, where the absurdity of the object highlights the double entendre.

Pencils and erasers have a surprisingly rich history. Before rubber erasers were commonly available, people used wads of bread to rub out pencil marks, a practice that continued until the mid-1700s when natural rubber's erasing properties were discovered. It wasn't until 1858 that Hymen Lipman patented the first pencil with an attached eraser, though this patent was later invalidated because it was deemed a combination of two existing items rather than a new invention. This innovation, however, cemented the pencil-and-eraser duo as an indispensable tool for students, artists, and anyone prone to a mistake or two. The joke cleverly subverts this practical partnership, imagining a tool so focused on undoing, it forgets its primary reason for being.