主题：请教英美华人一个语言问题：a little man的含义 -- 投入

a man of no importance or significance

An adult male who, due to a psychological or physical issue (often lack of stature) which gives them a complex of inadequacy , feels compelled to "prove themselves" to both friends and others on any given occasion by advocating and indulging in stupid and often dangerous acts of male bravado.