AN EXPLANATION BY ONE OF THE LIVERY.
Reading edition
Says Blue-and-Buff, to Drab-and-Pink, “I’ve heard the hardest word I think, That ever posed me since my teens, I wonder what As-best-os means!” Says Drab-and-Pink, to Blue-and-Buff, “The word is clear, and plain enough. It means a Nag wot goes the pace, And so as best os wins the race.”