Learned a new word.
根据WM Learner's Dictoinary,好象用在比较非正式的场合。
cock·i·er; cock·i·est
[also more cocky; most cocky] informal : having or showing confidence in a way that is annoying to other people
▪ a cocky young athlete ▪ Don't get too cocky about your chances of getting the job.
▪ a cocky young athlete ▪ Don't get too cocky about your chances of getting the job.