In the case of Hereditary, the young Charlie, played by Milly Shapiro, used a specific tongue click to create a jarring sound effect to startle viewers.

How Clicking Tongues Get Their Power Humans can create a huge and subtle range of sounds by forming and crushing air cavities in our mouths By Helen Czerski Sept. 23, 2022 4:17 pm ET Share ...

That’s when the tongue-clicking begins. Daniel, Brian, and Megan are making loud, sharp clicking sounds with their tongues so that they can hear what I can see.

A tongue-clicking sound could mean, "That's not what I wanted to happen." The dictionary spells this "tsk," though I'm not sure I say the "k." If you click once, you're disappointed in something.

How do snakes make an “sssssss” sound with their tongue poking out? – Lewis Maruno, age 4, Sydney. Hi Lewis, that is an excellent question! When a snake hisses, it is trying to say to ...