A block bet is a small wager made to discourage larger bets from opponents when out of position.
Explanation. The name comes from “blocking” the opponent’s initiative—by making a small bet (around 20–33% of the pot), you reduce the opportunity for them to fire a large bet against you. This is most effective when you have a medium-strength hand and face risk if checked to. The small size signals caution while often getting a call rather than a raise, limiting further damage.