Green’s Dictionary of Slang

way-out n.

[way-out adj.1 (1)]

(US) an unconventional or eccentric person; thus way-outness, unconventionality.

[UK]Manchester Guardian Weekly 17 Oct. 19: The drop-outs have copped out, the redskins have bitten the dust, the way-outs have faced the nitty-gritty (truth).
[US]Encyc. Science Supplement 158: Two years ago we were considered way-outs.