If you mean by this question "Have I ever labelled someone of Chinese origin by this term to their face" then the answer is a categorical "NO".
But if you mean have I ever said "Do you fancy some Chinky nosh?" as a shorthand for "Do you fancy visiting a Chinese restaurant?" then "YES"...
But if you mean have I ever said "Do you fancy some Chinky nosh?" as a shorthand for "Do you fancy visiting a Chinese restaurant?" then "YES"...