Growing up in Indonesia, we had "Kuku kaki kakekku kayak kuku kaki kakakku" (my grandfather's toenails look like my older sibling's toenails). The repetitive k-sounds are brutal.

What's interesting is how tongue twisters reveal what's phonetically tricky in each language. English struggles with s/sh transitions ("she sells seashells"). Indonesian targets the k-cluster combinations.

Curious if there's research on whether practicing tongue twisters in a second language actually helps with accent reduction, or if it's just party tricks.