In more detail, a string bet occurs when a player intends to make a single bet but inadvertently places more chips into the pot than originally intended. This can happen when a player first puts in some chips, then goes back to their stack for more without clearly stating their total intended bet before adding more chips. In poker, string betting is generally considered against the rules, as it can create confusion regarding the actual amount being wagered and can be exploited to gain an unfair advantage.
String Bet Poker Example
For example, if a player wants to bet $20 but first puts in $10 and then goes back to grab another $10 without announcing they are betting a total of $20, this could be flagged as a string bet. The dealer may then only allow the first $10 to count, rejecting the additional chips added after the initial placement.