Raise, in poker
where you or a villain
check-raise or even bet-3bet with a hand that you would like to see a showdown cheaply but can also improve on the river to a relatively-hidden better hand. Often it is used as a way of seeing the showdown for the same amount as just check-calling both the turn and the river, but against weak-tight
players it might even win you the pot on the turn since many weak-tight players think "he's not 3-betting with worse than what I have, I fold".
When the middle card paired on the turn
decided to go for the the good ol' FSDR by check-raising, hoping Dwan
would fold now, but knowing at the very least that he was likely to have the river
action go check-check now.