word type: poker slang
- An unbeatable hand, a guaranteed winner, or a figurative assertion of such.
Sports bettors are usually quick to point out that there is no such thing as a "lock" in a sports bet.
Similarly, in Texas Hold 'Em, even a very strong hand (such as a full house) is rarely a true "lock."
Actual "locks" are more likely to show up in games of Stud or Omaha Hi/Lo, where players often have the "lock low" or the "low locked up" before the hand goes to showdown.