Euphoniumism

A euphemism or innuendo relating to people who play in the lower brass section of the orchestra.

Applies solely to people who play the trombone, euphonium, baritone and tuba.

Girl: I like your tuba, is it full sized?
Boy: Gosh, that's a real euphoniumism!

by Nopseudonymisgoodenoughforme March 2, 2011