Sentence:  I remark that everyone (with the exception of such <WSD>Cockalorums</WSD> as the Guard, who rather stands on the dignity of his uniform, I imagine) understands the Captain's English, while they don't seem to get on very well with "my" French. 
Meaning of the word marked with <WSD> tags:  A menial yet self-important person; a person who makes empty boasts.