The phrase "squeaking sound" refers to a high-pitched noise that is made when two objects rub against each other and cause friction. The sound is often compared to the noise a mouse makes. Full definition
These little wooden car - buggy - guys also make a pleasing, gentle squeak - squeak sound when you press the button on their backs. (blueberryforest.com)
They may make a faint popping / squeaking sound as they cook. (e2bakesbrooklyn.com)
There may be a binding or squeaking sound in addition to the stiff spot. (wikihow.com)