The phrasal verb "bail on" is primarily used in informal speech and is commonly employed in casual conversations. It refers to abandoning or leaving someone abruptly or unexpectedly, often indicating a lack of reliability or commitment. People frequently use this expression when talking about flaking on plans or not following through with agreed-upon activities or responsibilities. The usage typically involves personal relationships or social settings, conveying a sense of inconvenience or betrayal to those left behind. Its informal nature and expression of dissatisfaction make it less likely to appear in formal writing or professional contexts, where more formal terms such as "cancel" or "withdraw from" might be used instead. The phrasal verb is popular in everyday vernacular, especially among younger demographics. It underscores not only the act of leaving but also the emotional response it triggers, displaying the dynamics of social trust and commitment.
B1
PreIntermediate
1. To leave or abandon someone or something, often at the last minute, breaking prior commitments or expectations.
He bailed on the meeting just an hour before it started.
She had promised to help with the project, but bailed on the team at the last moment.
I can't believe he bailed on us right before the concert!
We had tickets to the game, but he bailed on our plans.
The babysitter bailed on us, so we had to cancel our dinner reservation.