Sissy
A boy or a man who does things usually attributed to girls or who seems weak and not brave.
Sissy – a pejorative term for a boy or man who is not masculine in accordance to traditional standards. Sissy usually describes a male who is unmanly, lacking physical strength, testosterone, bravery, etc. Derived from a word sister, this termwas used among school children, becoming pejorative in late 1800s.
Soy boy
A pejorative term often used in online communities to describe men lacking masculine qualities.
Pejorative meaning of this term is based on the presence of phytoestrogen in soybeans. This fact led some people into conclusion that soy products feminize men who consume them.
According to Wikipedia, the earliest archived pejorative use of this term was on the 4chan website.
Easy English by Vesna 