Code monkey is a pretty common term both in game design and IT in general. Art Monkey is a play on this that as also increased in popularity. Though it sometimes has connotations of being low skilled, there is no history of racism in the phrase :)
I am sorry but anyone inside the industry would never even begin to take the idea of calling someone their Code or Art monkey as even remotely racist. It is rather immature of you to assume that it could even be such.