A slur for a ginger person. Comes from the word "koi", a domesticated carp that is usually orange.
"You fucking koy, I hate gingers"
"Look at that ugly fucking koy!"
Koy is as close as you're going to get to a "slur" for a group of people that aren't discriminated against. I'm talking of course, about GINGERS. When your ginger friends are pissing you off, call them a fucking "Koy". Koy is based on the word "Koi" which refers to the domesticated amur carp, typically a bright orange in color.
Person 1: "Look at that fucking koy. Ugly bastard."
Person 2: "Wow. You really hate gingers!"
Person 1: "A ginger killed my entire family."
A "slur" for gingers. Like the n word, but for gingers.
"Look at that stupid fucking ginga."
"I hate gingas."