What is the process called that involves thinning hair to produce volume using sliding shear movements?

The process referred to in the question is known as slithering. This technique involves using a specific movement with the shears to slide through the hair, effectively removing bulk while adding volume and texture. Slithering allows for a more blended, softer appearance, as it avoids creating harsh lines that can sometimes result from other cutting techniques.

This method is particularly effective for achieving a more natural look and can enhance the overall hairstyle by promoting movement and dimension. It is commonly used in barbering and hairstyling to help manage thicker hair or to enhance the shape of layered cuts, making it a valuable skill for barbers.

While terms like texturizing or layering also relate to hair cutting techniques, they describe different methods that do not specifically involve the sliding shear movement that characterizes slithering. Texturizing generally focuses on altering the texture of the hair and can involve various cutting techniques, while layering typically refers to cutting the hair at different lengths to create depth. Chunking is a more aggressive technique that aims to remove larger sections of hair and create a chunkier look, which is not the same as the smooth and blended effect sought in slithering.