Answer: ONTILT

"Ontilt" is a poker slang term that refers to a player who is emotionally affected by their losses or is experiencing frustration, causing them to make irrational or reckless decisions during a poker game. When a player is "ontilt," it means they have lost their focus and are not playing strategically or logically.

Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Betting recklessly, in poker slang. Explanations are generated by AI and may be inaccurate.