A juggalette is a morbidly obese and/or borderline-retarded teenage girl who has zero friends other than fellow Clown Syndrome patients and listens to the Insane Clown Posse religiously. They come from a usually poor background (reason why they pretend to be tough) most of which becoming pregnant by the time they are 17 after drinking faygo and pretending to be drunk. They typically have worst-case-scenario acne and have an outer layer of lard around the brain that slows even the most basic cognitive ability, usually their love life does not exist beyond internet cybersex with juggalos.
Normal person: Wow, look another ICP fan.
Normal person 2: Yeah, wait thats a "juggalette".
Juggalette: iz iz down wit da clownz
Normal person: What the fuck is that stench??
Normal person 2: THATS SWAMP CROTCH.. NOOOO!.
Information from ED.COM