This page is about the phrasal verb zone outINFORMAL
If someone zones out, they look blankly ahead without paying attention, maybe because they're tired or bored or affected by drugs.
space out (American, informal)
- zone out Peter sometimes gets bored in class and zones out. He looks like he's a million miles away.
- be zoned out I was talking to Debbie, but she was so zoned out that she didn't even hear me.
This is typically used in American English but may be used in other varieties of English too.
I knew Jamie was zoning out because he was
Contributor: Matt Errey