A word to describe a male or female who is legitimately a lame, a loser, no fun, sober, boring, no thank you , kind of person. The ultimatedefinition of lame.
Used pejoratively, to describe a man perceived as lacking traditional masculine traits, typically implying passivity, timidity, or emotional sensitivity. The term draws on stereotypes associating the consumption of soy products with reduced testosterone levels, though this is not scientifically substantiated. It is frequently employed in online discourse, often as a form of mockery or criticism, particularly in debates surrounding gender roles or modern masculinity.
A weak, feminine man. Basically the new generation's way of calling someone a fag. Similar to the evolution of the word 'fag', the definition and usage of soy boy has broadened over the years from being specifically against a sensitive, effeminate man (usually a liberal snowflake who is gay, trans, white knight, etc) to being a broad/basic insult for anyone that is disliked, despite their characteristics.
The Tate brothers were sigma chads yesterday because I liked them. Now they are soy boys because I don't like them anymore.