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A derogatory and fetishising word for a female-to-male transgender individual."
"Is that a boy or a girl?"

"I dont know, it's probably some shim or cuntboy or something."

".....Jim I think you need to leave."
cuntboy by iriscando February 13, 2015
A cuntboi is normally referred to as a male that has a vagina instead of a penis. The male is usually a twink and very feminine due to his parts. Cuntboys do not have breasts and are usually found From a FtM operation.
"We didn't know that Diana had a cuntboy for a boyfriend! He's oddly adorable."
Cuntboy by omgMyzarfin October 17, 2016
Fictional gender and an oxymoron: flat chested male who has a pussy instead of penis, and is able bear children.

This term was made up by furries. It was originally used sarcastically on alt.fan.furry for special snowflake characters who were so different that they needed their own gender. Sometimes used seriously by those who aren't aware of its origin.

Cuntboy is also occasionally used as an insult for transgendered individuals.
My fursona is a cuntboy. He is both male and female, but too special to be a herm. Don't question it.
cuntboy by Heliophanus May 20, 2015
cuntboy noun one being so cuntish that is be to be know as cuntboy
peter: yo you get that dildo yet
Judus : hell no cuntboy
cuntboy by deyon March 16, 2008
Similar to "fuqboi", a cuntboy is someone obbsessed with themselves, and vagina. They are also very annoying and their natural habitat is Xbox Live.
Look at that cuntboy, playing xbox and jerking off all day.
Cuntboy by meowplankton12 March 31, 2015
1. Asahi sas Brutus from Final Fantasy XIV
2. A person who acts like Asahi sas Brutus from Final Fantasy XIV
Asahi sas Brutus is a cuntboy.
cuntboy by Yotsuyu December 2, 2025