cocksure
adjective /ˌkɒkˈʃʊə(r)/, /ˌkɒkˈʃɔː(r)/
/ˌkɑːkˈʃʊr/
(old-fashioned, informal)- confident in a way that is annoying to other people and that they might find offensive
过分自信的;自高自大的;自以为是的 词源early 16th cent.: from archaic cock (a euphemism for God) + sure; later associated with cock.