Definition

A brand-name sticky note with a repositionable adhesive strip along one edge, allowing it to be attached and removed from surfaces without leaving permanent marks. Invented by 3M and widely used for reminders, messages, and annotations.

Example Usage

I left a Post-it on the monitor reminding him to call the vendor.

Origin

Accidentally invented in 1977 by Spencer Silver and Art Fry at 3M when experimenting with adhesive formulas; launched commercially in 1980.

Fun Fact

Post-its were initially slow to catch on but became a runaway office success after 3M began giving free samples to executives, creating demand through grassroots adoption.

Source: Definition backfill (hailey)

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