* ನಾಲಿಗೆ ಕುಣಿತ (nālige kuṇita): This literally translates to "tongue dance" and refers to the twisting and turning of the tongue.
* ನಾಲಿಗೆ ಬೆಳೆಸುವ ಮಾತು (nālige beḷesuva mātu): This means "words that exercise the tongue," referring to the difficulty in saying them quickly and clearly.
* ನಾಲಿಗೆ ಸುರುಳಿ (nālige suruḷi): This means "tongue curl" and refers to the tongue twisting and turning around itself.
You could also use a descriptive phrase like "ಕಷ್ಟವಾಗಿ ಹೇಳಬೇಕಾದ ಮಾತು" (kaṣṭavāgi hēḷabekaada mātu), which means "difficult to say words."
Ultimately, the best way to convey the meaning of "tongue twister" in Kannada would depend on the context and the desired level of formality.