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2.
Things that Stump uses in his pockets to keep his shirts clean from leaky pens...
Pocket protectors are plastic, nerdy, black envelope like.
by Diana Dewey October 25, 2007
 
1.
A plastic shieve inserted in one's shirt pocket to prevent pens from leaking and staining the shirt.
As far as i am aware it was invented in the US, and never exported to the rest of the world.
Not popular anymore, even among geeks
Yo, jigga whats wit the pocket protector?
I keep my dust in there, bro
by Nerg June 07, 2004