Trashion is a term for art, jewellery, fashion and objects for the home created from used, thrown-out, found and repurposed elements. The term was first coined in New Zealand in 2004 and gained in usage through 2005. Trashion is a subgenre of found object art, which is basically using objects that already have some other defined purpose, and turning it into art. In this case, trash is used.

A found object, or found art, is art created from undisguised, but often modified, items or products that are not normally considered materials from which art is made, often because they already have a non-art function. Pablo Picasso first publicly utilized the idea when he pasted a printed image of chair caning onto his painting titled Still Life with Chair Caning (1912). Marcel Duchamp is thought to have perfected the concept several years later when he made a series of ready-mades, consisting of completely unaltered everyday objects selected by Duchamp and designated as art. The most famous example is Fountain (1917), a standard urinal purchased from a hardware store and displayed on a pedestal, resting on its back. In its strictest sense the term "ready-made" is applied exclusively to works produced by Marcel Duchamp, who borrowed the term from the clothing industry while living in New York, and especially to works dating from 1913 to 1921.