What is the meaning of Cockscomb?

The fleshy red crest of a rooster

A red cap once worn by court jesters

A yellow rattle, Rhinanthus minor (flowering plant native to Eurasia)

An annual garden plant (Celosia argentea var. cristata, syn. Celosia cristata), having showy red clusters of flowers

A conceited dandy

A serrated cleat once fitted to the yards of a square-rigged ship and used when the sail was being reefed

Source: wiktionary.org