I'm building my apprentice tool kit and it calls for wire screamer I have never heard this term and Google fails me.

They sell them next to the Glitch Gone, and the Bit Buckets.

But I think what you are looking for might be one of these....

http://www.triplett.com/shop/fox-hound/

I think Smooty is right, but in all my years doing this I have never heard that term.