When a person conducts themselves in the most exemplary way possible. The person will be very toff-like.
A person rowing across a lake with arms flailing and un-coordinated, would be the opposite of someone executing the action in a tarquinius fashion. A tarquinius rower would not only display exemplary rowing skills, but will also be wearing only the finest attire and will be outstandingly groomed.
by CD463 April 25, 2013