A man who desires repeated sex with a women, and acquires this sex by means of being 'polite' and 'courteous' with an underlying, well-hidden, strong violent sex drive.
He is more intelligent and realises the benefits of on-demand sex but without a significant commitment.
Underhanded and decieving, to be avoided.
Gentleman: Let me get that door for you madam
Unsuspecting women: Thankyou sir, you are a gentlemen
Gentlemen: Do come and sample my seasoned pork sword (penis) over a glass of wine