Slang used to describe males who completely and utterly lack all necessary masculine qualities. This pathetic state is usually achieved by an over-indulgence of emasculating products and/or ideologies.

The origin of the term derives from the negative effects soy consumption has been proven to have on the male physique and libido.

The average soy boy is a feminist, nonathletic, has never been in a fight, will probably marry the first girl that has sex with him, and likely reduces all his arguments to labeling the opposition as "Nazis".

See also: cuck, beta/omega male, orbiter, kissless virgin, male feminist
Laura : Connor Fussa is a soy boy

Katelyn : ya did you see that meme he made about me?!
by Wzr22 September 1, 2019
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An insult intended to equate disagreeing with a reactionary with weakness. The logic involved is something like "everyone who disagrees with me must be a tofu-eating vegetarian, and that's unmanly," often with some baseless fear-based pseudoscience about phytoestrogens tacked on after the fact. Ironically often spewed by users of nootropic pills that contain soy (and clearly aren't helping); rarely takes into account the fact that soy is a common allergen.
Reactionary: "Disagreeing with me? What are you, a soy boy?"
Rational Person: "I'm allergic to soy, and it's called paying attention. And what's the first ingredient in those BranePowah™ pills you shill, again?"
by Punch Dagger of Serenity July 30, 2022
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a boy/man who has effeminate traits, is a humanitarian and politically-correct (*ahem politically-left*). unafraid to say they are feminists bc they are comfortable in their masculinity. similar to ‘soft boy’ except the soft, poetic, emotionally-intelligent vibe is not to get into girls pants, but genuinely authentic. term refers to the fact they usually eat plant-based diets. can be any sexuality.
“Why can’t I find a soy boy for once?”
by Wrennnn May 24, 2022
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A Soy Boy is someone who has a man bun/massive forehead, donates to girls, and plays halo 3 everyday
by Soyyboyy September 17, 2021
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A Soy Boy is a guy that will do anything for a female for free. If you give a girl that you aren’t dating a free ride you are classified as a Soy Boy. This includes letting them mooch off your Juul or Sourin.
Me: Dude Zach you such a Soy Boy
Zach: Bro, I picked up Cora for school that’s not fair!
by RacerX248 September 9, 2019
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Usually skinny, often wearing skinny jeans

Flat cap sometimes there mother too .
Pouting selfies

Sometimes wearing foundation.

Eye brows plucked

Gobby

Classic Joey Essex type

: Soy emphasis
Mimic high estrogen levels .

Other references, swaggot
Did you see that soy boy get out of his mother's Mercedes

What a mincer
by Strong hand John December 29, 2017
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Every one here
Soy boy: soy boy are the guy that can beat a alt right in arguments
Alt right: who the fuck is this soy boy?

Black guy: it's Rick, i fricked his girl in front of him. you had to see his ugly lookin ass soy face wile his girl got her pussy open like Walmart's door.
by I_smash_your_pussy6969 September 6, 2020
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