曲奇is the transliteration of cookies which means 饼干。So it is the same when you say饼干or曲奇。But we use 饼干quite more ofen than曲奇。

How do you normally call a cookie? Is it 曲奇 or 饼干? Does any of these words also mean something like waffles or pancakes? Thank you! 曲奇是特指，饼干指一类。实际中，叫曲奇或者饼干都可以，饼干包含曲奇。

Haha, 'cocky' in English means 骄傲自大， 骄傲自满， but of course you meant to write cookie.

cookie 曲奇　是根据cookie 这个音转过来的词 [ku:ki ] ----- [qu:qi]

曲奇饼