0 a long open tube made of corrugated plastic (= plastic with a regular pattern of folds) that can be turned very quickly in the air in order to produce musical sounds :
Twirl this 30-inch plastic whirly tube over your head at different speeds and make at least five different tones, depending on how fast you can twirl!
Our Whirly Tubes (Singing Tubes) are a fun noise-maker that are swung in a circle to play.
I'm hearing a noise in my right ear that resembles those plastic whirly tube toys that you spin around in circles and they make that whistling kinda sound.
If you want to get people's attention, simply start spinning one of these Whirly Tubes over your head. The room will quickly fill with a loud melodic tone.
