choker

1. (fashion) A piece of jewelry or ornamental fabric, worn as a necklace or neckerchief, tight to the throat.Examples: "Anne Talbot looked demurely ravishing, as was her intention, in a very low-cut evening frock of bottle-green, choker of Kelantan silver, earrings in the shape of krises."; "She appears on the 90th anniversary issue of French Vogue wearing nothing but a mask, gloves and a choker – everything but her now iconic gap-toothed pout and impressive cleavage is obscured."; "The words: “Take your hands off when I say no, take your eyes off when I say no” were spelled out on video screens as the first model marched past in loose black layers, a punky choker and black shoes."

2. (slang) Any disappointing or upsetting circumstance.Examples: "I lost £100 on the horses today — what a choker!"Synonyms: bummer, downer, pisserslang