What happens to the shape of the toothpaste when you squeeze it?

When you squeeze a tube of toothpaste, the shape of the toothpaste changes due to the applied pressure. The force causes the toothpaste to flow out of the tube and take on a shape that conforms to the opening of the nozzle. The material's viscosity allows it to maintain its new shape temporarily until it is further manipulated or settles. Once released, it can return to a more stable form depending on its consistency.