(informal) Confused, stupefied, or disoriented through the action of a narcotic drug (or as if so intoxicated).

simple past tense and past participle of space out

(informal) In a confused or oblivious mental state, for example as a result of drug-taking. / Positioned at regular intervals with a specified space between them.

(transitive) To position (objects, people etc.) at regular intervals with a calculated space between them. / (intransitive, idiomatic) To become distracted or disoriented; to lose attention or focus.

present participle of space out

Third-person singular simple present indicative form of space out