The "lette", I believe, refers to the latter half of "juggalette". It is short for juggalette.

A useless and tainted pile of skin wrapped around an equally useless and tainted clown-painted vagina.

Being a Lette..(short for Juggalette) isn't about how much merchandise you have or knowing every little detail about ICP. It's about being yourself- about seeing the world differently from normal society and not giving a fuck where your opinion fits in. Juggalettes don't take shit from other people, they know who they are and they accept it. They don't let any Feminem fans fuck with their family and they defend the family 100%. True Juggalettes know what it's like to be an outsider. It don't matter how many hatchetman tatoos you have, or how many ICP cds you own, it's about being yourself and not caring if other people don't like who you are. It's about knowing that you always have the family to lean on when you need support. And one of the most important things is being a true believer in the Dark Carnival and knowing that when life fails you, Shangri-La will always be a place for you to go. That's what a TRUE Juggalette is.

The second smallest category in the scientific measurement of farts. Usually involuntarily released, the lett ranks between the SBD and a squibbler.

The act of letting another person place a live gerbil in your anus

A Juggalo(Juggalette being the feminine version) is a person that listens to and follows a group from the Psychopathic Records. Most feel like outcasts and turn to other Juggalos/Lettes to hang out with them,Juggalos/Lettes listen to what they want,dress in what they want,and usually wear paint on their faces to appear as "Clowns" from the Juggalo/lette family.Most/All Juggalos/lettes do not approve of or listen to mainstream.

A faggot that chooses objects over mates