Sentence:  “[…] Them rich fellers, they don't make no bad breaks with their money. They watch it all th' time b'cause they know blame well there ain't hardly room fer their feet fer th' <WSD>pikers</WSD> an' tin-horns an' thimble-riggers what are layin' fer 'em. […]” 
Meaning of the word marked with <WSD> tags:  One who bets or gambles only with small amounts of money.