tearoff

A tearoff is a detachable portion of a sheet or document designed to be removed by tearing along a perforation or score line. Tearoffs are used to publish information that a person can take with them, such as contact details, coupons, or receipts.

In print media, tearoffs appear as flyers with a perforated edge, where a bottom or side strip can be torn away, often containing a phone number or address. In calendars and planners, tear-off pages or sheets are designed to be removed daily or monthly. Event tickets and receipts often have a tear-off stub that is kept by the purchaser or surrendered at the point of entry.

Tear-off formats are used for coupons, vouchers, and mailers; they improve portability and enable quick handoffs. The design relies on perforations, micro-perforations, or scored lines to ensure an easy tear without damaging the rest of the sheet.

In computing, the term tear-off refers to a type of menu that can be detached from the main menu bar to remain on screen as a separate window. This interface element is found in some graphical user interfaces and historically in certain early operating systems.