<p><strong>Noun</strong></p><ul><li>A large photograph, as of a sexually attractive person, suitable for pinning on a wall.</li><li>A person in such a photograph.</li><li>A device or fixture that is fastened to a wall, as a lamp.</li></ul><p><strong>Adjective</strong></p><ul><li>Of, relating to, or appearing in a pinup: a pinup girl.</li><li>Designed or suitable for hanging or fastening on a wall: a pinup lamp.</li></ul>