A loud annoying noise thats made with a wrapper, part of a plastic bag or plastic warp, or paper.
This is my first instructable so sorry if its not very good.

Step 1: What You Need

you will need

a candy wrapper, plastic bag/plastic wrap or paper

a mouth to blow with

scissors

Step 2: Cut

Cut your paper, candy wrapper, or paper into a small a little smaller than your mouth.

Step 3: Make the Sound

Get the piece of wrapper, paper, or plastic at the edge of your bottom lip and open your mouth just a little tiny bit so the wrapper, paper, or plastic can almost be pushed in your mouth. Now blow real hard and you should get a loud squeak that might hurt your ears if its loud enough.