Webster's Revised Unabridged Dictionary · 1913

Mirliton

Mirliton , noun

[French]

1.
A kind of musical toy into which one sings, hums, or speaks, producing a coarse, reedy sound. It is also called a kazoo.
Trilby singing “Ben Bolt” into a mirliton was a thing to be remembered, whether one would or no! — Du Maurier
2.
same as chayote.