To have a voice with more than one tone. To not have a monotone voice.
Dude, your so lucky, your voice is dualtone.
by City, The Bassist August 17, 2008
Where your can voice can have more than one tone to it. To not have a monotone voice.
Bro, i have a dualtone voice, i would be great in a porn.
by J, Clarkerton August 24, 2008