Rock
Basic Definition
In poker, a "rock" refers to a player with a very tight and cautious playing style. This type of player typically only plays with very strong hands, focusing on minimizing risk.
Specific Situation
If a tight player raises pre-flop, their hand is likely very strong and often includes premium hands like 
or 
.
After the flop, if the player in the lock position continues to bet, it is assumed they hold a strong, completed hand. For example, if they make a large bet on a flop of 

, it might include a set like 
.
Important Information
- Since rock players are very predictable, a strategy that maximizes value with strong hands is more effective than bluffing.
You can take advantage of their caution to frequently induce folds. However, be careful when they are involved in the pot.
Examples of Term Usage
"He's a total rock style player, so if he reraises pre-flop, he must have a really strong hand."