bleeder
noun
1
a person UK, 1887.
2
a contemptible person UK, 1887.
3
a casino employee or executive who worries extensively about money being lost to gamblers US, 1974.
4
in poker, a player who methodically if undramatically drains money from the game by conservative, steady play US, 1988.
5
a boxer who is prone to bleeding US, 1975