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English definition of “spaced out”

spaced out

adjective [after verb]     (also spacey, spacy) slang
describes someone who is not completely conscious of what is happening , often because of taking drugs or needing to sleep : I hadn't slept for two days and was completely spaced out.Drugs - general wordsSpecific types of drug
(Definition of spaced out adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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