a boy with a cunt, aka a female-to-male (FtM) transgender/transsexual who hasn't had bottom surgery (and in this case who looks like a boy instead of a man, like some FtMs do).
I really dig cuntboys. There's just something really hot about a boy with a cunt.
by Vic Silverpaw March 6, 2009
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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."
by iriscando February 13, 2015
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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.
by Heliophanus May 18, 2015
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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
by deyon March 16, 2008
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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."
by omgMyzarfin October 17, 2016
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(Also known as 'cuntboy'), is a slur for transgendered men, who are born with vaginas, (born biologically female). Typically used in fetish porn.
"Cuntboi is a slur, and if you use it, go fuck yourself."
by Angry Trans Guy May 3, 2018
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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.
by meowplankton12 March 31, 2015
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