I would equate "coconut" with being black and aspirational. It is a backhanded compliment really. If I were black, I would like those whom I have left behind in the ghetto, in Labour and the LibDems to call me coconut, if they are disposed to be envious and insulting.
I do hope however that Shirley Brown will appeal against being found guilty of "racially aggravated harassment", which is ridiculous. One single offensive comment cannot constitute harassment.
I have a nasty feeling that whoever in the CPS who approved this prosecution must have been a woman, though I am happy to be corrected if I am wrong. As we all know, women are more censorious and irrational than men as well as having a poorer grasp of such principles as free speech. They also find it harder to forgive, being the weaker sex.