chinaman (n.) 1. A man from China (archaic, derogatory) 2. Left-arm unorthodox spin bowling used in the sport of cricket

Chinaman is definitely an offensive term that is used in a derogatory way. That is, we use it to refer to someone from China but with a negative tone or with anegative comment that follows. Here is one of many links that I found with dictionary definitions that indicate that it is offensive. http://www.answers.com/topic/chinaman A Chinese man is not offensive and is similar to Canadian man or American man.

Chinaman isn't offensive, is it? It just means man from China, right?

A Chinese man is simply a man from China. In the US "Chinaman" (written as one word) is an offensive word for a Chinese person and is often used for any person of Asian origin.

I reckon a "chins man" is a man who likes his women to have several chins. For example, he's not a bum man, or a breast man, but a chins man.