A groan tube is a toy that makes a loud, deep groaning or howling sound when tilted or shaken. It is typically made of plastic and consists of a long, hollow tube that contains a loose object, such as a small ball or bead. When the tube is turned or moved, the object inside vibrates and produces a groaning noise. Groan tubes are often used for fun, providing an amusing sound effect during play or performances.

A(z) „groan tube” jelentése és meghatározása angolul

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