The phrasal verb "blow off" is commonly used in informal speech rather than formal contexts. It generally means to deliberately ignore or dismiss someone or something. In everyday conversation, it might be used to describe ignoring a task or appointment, e.g., "He blew off the meeting to go hang out with friends instead." This phrasal verb can also imply disregarding or not taking something seriously, for instance, "She just blew off his concerns about the project." Additionally, in a slightly different context, "blow off" can refer to releasing steam or gas, as in "The valve blew off under pressure." Its informal nature makes it a colloquial choice, likely to be used among friends or in casual settings rather than in professional or academic writings.
B1
Intermediate
1. To deliberately not attend or participate in an event or meeting.
He decided to blow off the meeting and go to the beach instead.
She blew off class to hang out with her friends.
2. To dismiss or ignore someone or something without regard.
He tried to apologize, but she just blew him off.
The manager blew off his concerns during the meeting.