tatsman slang.
(ˈtætsmən)
[f. tats dice, pl. of tat n.1 + man n.1]
A dice-player, or a sharper who cheats with dice.
| 1825 C. M. Westmacott Eng. Spy (1907) I. 211 note, A tats man, a proficient with the bones, one who knows every chance upon the dice. |