smear Your browser does not support the audio element. [ English ] Definition A slang term for a glissando performed on a trombone. Composer Henry Fillmore is known as the Father of the Trombone Smear, and wrote a series of fifteen novelty tunes featuring trombone smears. The most famous being Lassus Trombone. In Dixieland jazz, the trombone glissando (or smear) is also known as a tailgate. See Also [English] tailgate [Italian] glissando Share Share on Facebook (opens in a new tab) Share on X (opens in a new tab) Last Updated: 2016-06-15 20:24:02