The definition of a watched pot never boils is:
(proverb) be patient, especially when you’re watching something
A: I can’t wait until I turn 18 and can start driving!
B: Come on, Jimmy. A watched pot never boils.
When Roberta was waiting for her friends to arrive at the airport, they took forever. When she looked down to check her cellphone, her friends were smiling at her. A watched pot never boils.
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