Blazer

Etymology
From.

Noun

 * 1) A semi-formal, casual jacket.
 * 2) A person or thing that blazes (marks or cuts a route.)
 * 3)  One who smokes cannabis; a stoner.

Thesaurus
Eton jacket, Mao jacket, blouse, body coat, bolero, bomber jacket, capuchin, car coat, chaqueta, chesterfield, claw hammer, claw-hammer coat, cutaway coat, dinner jacket, doublet, dress coat, duffel, fingertip coat, fitted coat, frock, frock coat, jerkin, jumper, jupe, loden coat, mackinaw, mess jacket, midicoat, monkey jacket, parka, pea jacket, reefer, sack, san benito, ski jacket, sleeve waistcoat, smoking jacket, spiketail coat, swallowtail, tabard, tail coat, tails, watch coat, windbreaker, woolly