Blocker
When you hold a card that would help your opponent form a better combination. For example: you have tens, and the flop shows QJ9, so you have a blocker, making it much less likely that your opponent will have a straight.
When you hold a card that would help your opponent form a better combination. For example: you have tens, and the flop shows QJ9, so you have a blocker, making it much less likely that your opponent will have a straight.