Used to define an annoying ass person, male or female, that you previously described as either "jank" or "annoying," but upon coming across this word, now describe as jannoyink. This person typically snorts when he or she laughs and talks in a nasally voice. He or she is often smelly.
Eww did you hear chatty Kathy snort when she listened to the bed intruder song? She's so jannoyink!