A long, thick cock that a broad chokes on while trying to suck (blow) it

A choker is a tight fitting (usually lace) necklace worn as a fashion trend that started in the 90's and is reoccurring. It is symbolic of the "SUBMISSIVE collar" given by dominants to show possession, but in smaller less gaudy form. BDSM. Hence the term "choker".

Indicates you enjoy sucking dick. Normally worn by hoes.

Someone who blows a seemingly insurmountable lead in any competitive endevour. A person or team that suffers a nervous collapse caused by pressure of winning.

Something teen girls wear as part of their outfit, similar to a necklace but tighter

A blow job blackbelt. Basically a kinky sluts badge of office.

(especially if its lace)

A person who pratices autoerotic asphyxiation or paraphilia, a practice where someone temporarily cuts off their own air supply by means of a ligature or some other sort of self-asphyxiation device during sex or masturbation.