They were the "bookies," otherwise bookmakers, generally Jews and sometimes Welshers.
All I said was dat da 'Gink' was for him pulling the bookies.
As for the bookies who hissed the horse on the course—who's to pity them?
If he is satisfied, so are the 'bookies'; and certainly other people have no cause to complain.
The bookies thought that Blinky Bill had sold them, and they discarded him for ever.
Blinky Bill had a half-share in all the bookies' winnings, so he chuckled grimly as he went to the rails to watch the race.
And what is this that flashes to the front, while the howls of the bookies rise like the yelping of fiends in torment?
Very often a horse is made a favourite by the bookies, in conjunction with the Press, just so as everyone will back it.
"One paper hints that the stable was in on it; wanted to hit the bookies hard," put in his companion diffidently.
First, because you turned down the crooked deal he offered you, for it was he who was beating the bookies, and he wanted a pal.