The Mudcat Café TM
Thread #59418 Message #2035018
Posted By: Amos
25-Apr-07 - 12:03 AM
Thread Name: BS: The Mother of all BS threads
Subject: RE: BS: The Mother of all BS threads
It's a shortening, over time, of the expression "riding on horseback", which is no more unusual than the expr4ession "riding on a jet plane" or "riding on a buckboard".