(N.) A person of Chinese ethnicity. This is a way to call a Chinese person a "chink" without insulting them. Adding an "a" to the end of any insulting name makes it OK.
"Chinka be trippin!"
"Wetbacka piece of crap!"
A Chinese person that could be a nigga if there skin wasnt yellow. Chinka derives form the last syllable of the word nig-ga, and the word chink which is a racial slur for chinese people but then again so was nigga 100 years ago.
Kimjin-Kanichiwa my chinka.
Saddeed-Yeaaaa my chinka.