A Soy Boy is what a rich, teenage boy is called. They flirt with girls and many girls have crushes on them, but Soy Boys usually have girlfriends but they keep they're flirting casual.

How do you spot a Soy Boy? Do you have that one boy in your class that stands out? Does he wear clothes that have come from Abercromie and Fitch? Does he usually hang out with other popular girls and occasionally girls who aren't so popular? Does he flirt with them even though he has a girlfriend? Well sorry girls, he's a Soy Boy.
Lindsay: "Hey, David's kinda cute! I think he was flirting with me earlier."
Monica: "Lindsay, David is a huge Soy Boy! Even if he talks to you, don't fall for him. He's already dating someone anyway."
by phoebe glitz June 20, 2015
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A very skinny effeminate man. The type of guy who would be a bottom even if he were straight.
Hey Josh I would like to purchase one red whippin shittys mobile for 1.5 soy boi's, Take it or leave it bitch.
by lippy282 August 4, 2018
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a cross between a "simp" and a "nice guy". Rare in real life, but abundant on the internet. Usually claim to be politically correct, eco friendly and so on but only because it makes others perceive them in some type of way. a Soy Boy tends to base his values and morals off of what the majority opinion is to avoid backlash and appear to be a "nice guy". the ways in which soy boys are simps is that their morals and values are changed to appeal to the opposite gender. the special thing about soy boys is that most of them are not self aware in what they're doing and genuinley and don't see how they're manipulating people's perception of them.
person 1: "What's your opinion on kim K and Pete Davidson?"

person 2: "well i was originally team kanye until brittany told me he's being sexist."

person 1: "so you changed your opinion because a girl you like doesn't agree with you? You're such a soy boy!"
by D4z1b013000 May 18, 2022
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Soy boy is a pejorative term sometimes used in online communities to describe men lacking masculine characteristics. The term bears many similarities and has been compared to the slang terms cuck (derived from cuckold), nu-male and low-T ("low testosterone") – terms sometimes used as an insult for "male femininity" by online communities.

The term is based on the presence of the phytoestrogen isoflavone in soybeans, which has led some to claim that soy products feminize men who consume them, although there is no correlation between consumption of soy phytoestrogens and testosterone or estrogen levels or sperm quality.

The term is often used as an epithet by "internet trolls". It is often targeted at perceived social justice warriors, vegans, liberals, and similar groups. The term has also been used in online debates about the fashion appeal of cargo shorts.
Soy boy is undoubtedly the far-right's newest favourite insult.
by Johnwick98 August 31, 2022
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What a boy learning Spanish says trying to describe himself when he doesn't know the Spanish word for "boy".
Spanish teacher: "Can you say 'I am a boy' in Spanish?"
Boy: "Okay. ¡Hola! Soy boy."
Spanish teacher: "Actually, 'boy' in Spanish is 'chico'. And you should also add 'un' before."
Boy: "Okay. ¡Hola! Soy un chico."
Spanish teacher: "Much better"
by udusers1 February 7, 2019
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A genderqueer or a feminist lesbian who is a militant vegan/vegetarian.
Sadie's such a soy boi that she eats leg wax.
by smccarney February 16, 2008
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The person writing any definition for this word which contains the words "alt-right", "Nazi", "conservative", "fascist", and devotes every day of their miserable lives to postmodernism. They can be commonly found on the slang-dictionary site, UrbanDictionary.com, karma bombing any post that their fragile boypussy can't handle. Commonly connotated as "cucks", although such a comparison isn't always accurate, as many soy boys are actually SIMPs, who follow the charade of third-wave feminism just for a chance for a smidgen of pussy.
John: Hey, Frank, did you see that submitted definition for soy boy?
Frank: No, they must have karma-bombed it to page 69.
John: So much for fragile masculinity.
by heeI February 23, 2020
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