'Oars!

"Most people travel east to west via water taxi. That is, the london oarsmens and their barges.  If we walk down to the river we hear their cries of, 'Oars oars!'  If we're young ladies up from the country we may think that we've just been insulted."

-Robert Bucholz in History of England From the Tutors to the Stuarts (lecture 26)