(also zoner) A person intoxicated with narcotics, esp habitually so; space cadet (1960s+ Narcotics)verb
To be inattentive; be hazily preoccupied: He zoned so bad he didn't even hear the teacher call his name/ I was kind of zonin', checking things out (1980s+)
[fr ozone, ''a very high level of the atmosphere'']
You zone out until what I'm trying to convey reaches critical mass, and then kaboom, and I'm the bad guy, and bye- bye messenger.
After several hours of testimony explaining his calculations, some jurors seemed to zone out.