The term has also been used in online debates about the fashion appeal of cargo shorts.
At the conclusion of the 2018–2019 United States federal government shutdown, people on the Internet, especially on Twitter, started calling US President Donald Trump a soy boy or a cuck. It is often targeted at perceived social justice warriors, vegans, ' liberals', and similar groups. The term is often used as an epithet by internet trolls.
The earliest archived use of the term soyboy as a pejorative on 4chan was submitted to a thread on the /tv/ (television & film) board on April 18, 2017. Several review studies have indeed not found any effect of phytoestrogens on sperm quality or testosterone levels. While there is some evidence that phytoestrogens may affect male fertility, 'further investigation is needed before a firm conclusion can be drawn'. As they are structurally similar to estradiol (the major female sex hormone) and have activity at the estrogen receptor, concerns have been raised that it may act as an endocrine disruptor that adversely affects health. Soy products contain high amounts of phytoestrogens.
