gimme hat

So called because sometimes given away as freebies.

gimme hat (plural gimme hats)

1. Synonym of trucker hat
   • 1999, William Gibson, All Tomorrow's Parties (Bridge trilogy; book 3), New York, N.Y.: Viking Press, →ISBN, page 139:

     “It's from those nylon baseball caps they used to wear, got black nylon mesh on the back, for ventilation? My mother used to call those ‘gimme’ hats . . .”