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:
The musical instrument shown in the picture is known by various names e.g. the whirly tube, the corrugaphone, the bloogle resonator.
Every day I will try playing a different musical instrument. Day 30: the corrugaphone or bloogle resonator, aka whirly tube.
