A house rule of some casinos states that if a player in turn picks up chips from his stack and moves his hand toward the pot ("forward motion with chips in hand"), this constitutes a commitment to bet (or call), and the player may not withdraw his hand to check or fold. Such a player still has the choice of whether to call or raise. Compare to " string bet ".
FORWARD MOTION
Meaning of FORWARD MOTION in English
Poker English dictionary. Английский словарь покера. 2012