space cadet
noun Slang.
a person who appears to be in his or her own world or out of touch with reality.
a person who behaves oddly or seems stupefied or remote because of the influence of drugs; druggie.
Origin of space cadet
1950–55, for sense “spaceman trainee”
Words nearby space cadet
space,
space age,
space bar,
space biology,
space blanket,
space cadet,
space capsule,
space carrier,
space character,
space charge,
space group
British Dictionary definitions for space cadet
space cadet
noun
slang
a person who is eccentric or out of touch with reality, as if affected by drugs