Zone out.
[Slang] ZONE OUT. - Enhance Your English: Understanding Attention Slang
Lose focus.
Zone out" refers to losing focus or daydreaming, disconnecting from the present surroundings or activities. It often happens when someone is bored or tired, leading them to detach mentally and not pay attention.
Example Sentences
During classes, I often zone out and daydream.
During classes, I often get distracted and start daydreaming.
He was so bored during the meeting, he completely zoned out.
He was so bored during the meeting, he completely lost focus.
Whenever I listen to music, I just zone out and forget about the world.
Whenever I listen to music, I lose myself in it and forget about everything else.