A Dyslexic Ginger is a ginger or redheaded person with the reading disability known as dyslexia which affects reading, spelling, and writing.
Jack: Hey Bob, who's that new kid?
Bob: Oh that carrot-top? Idk, but his hand writing is so bad dude.
Jack: So practically a Dyslexic Ginger
Bob: A what?
Jack: Look it up on urban dictionary