An apple chimi is similar to a blumpkin. While someone(male) is on a toilet his female partner has the male place his penis in her asshole while having intercourse the male begins to deficate into the toilet. While the male is deficating the female urinates at the same time while having anal sex and that is an apple chimi.
"Wow nick i cant believe you did an apple chimi with your cousin."
"Sally its my birthday and all i want is an apple chimi."
"One time when i was detoxing and havent taken a shit in a week a girl i met in rehab gave me an apple chimi."