Milker ( poker )

A tight or conservative player. Probably comes from the description of someone who has to milk every hand he plays, because he would not ordinarily get much action. To milk is to Get the most benefit on a hand (often a hand of relatively low value) from the holder of another, inferior, hand; usually followed by that hand or the name of the player who was so cajoled into calling the maximum. "You certainly milked me that time." "He milked that hand for the most he could get, considering who he was up against."