cock-ring

Noun

cock ring (plural cock rings)

1. (slang, vulgar) A band, worn around the base of the penis, used to slow down the flow of blood from the penile tissue and hence maintain an erection.
   • “[…] Conventional tattoos belong firmly among the iconics of the hegemon. It's like wearing your cock ring to meet the pope, and making sure he sees it. Actually, it's worse than that. What are they like?”2014, William Gibson, “Death Cookie”, in The Peripheral, G. P. Putnam's Sons, →ISBN, page 6

   Synonyms:

   penis ring

2. An enclosure in which a cockfight takes place.