1. zone out - Verb
2. zone out - Phrase
zone out (third-person singular simple present zones out, present participle zoning out, simple past and past participle zoned out)
(informal, intransitive) To stop paying attention and think about something else, or to think about nothing
Working out is my biggest hobby. It's my Zen hour. I just zone out. Zac Efron
You lose your habitual behavior, which allowed you to sort of zone out. You have to be here, you have to be now, you have to be present. Sally Field