A slang term to describe a type of cap that you see people wearing, characterized first by its long peak but further identified by a huge curve in the peak of the hat.

Any person wearing a hat like this can be imagined looking into a mailbox where the entire peak fits right in so the person can look up close so as to inspect the mailbox.
Here comes Johnny, look at the huge curve in the brim of his hat! He looks like he's a mailbox inspector!
by Alley1969 July 26, 2013
Get the Mailbox inspector mug.