choker

(noun) someone who kills by strangling. Synonyms: garroter, garrotter, strangler, throttler.

(noun) an unfortunate person who is unable to perform effectively because of nervous tension or agitation. Example: "He could win if he wasn't a choker."

(noun) necklace that fits tightly around a woman's neck. Synonyms: collar, dog collar, neckband.

(noun) a high tight collar. Synonyms: ruff, ruffle, neck ruff.