psychedelic to the bone, phr. — Green’s Dictionary of Slang

psychedelic to the bone phr.

[fig. use of SE psychedelic + to the bone under bone n.¹]

1. (US black drugs) extremely intoxicated by a drug, but not necessarily a hallucinogen.

1980

E. Folb Runnin’ Down Some Lines 166: Say, white girl like you probably dig some nice acid – git chu psychedelic to d’ bone!

2. of clothes, very colourful.

1980

E. Folb Runnin’ Down Some Lines 250: psychedelic to the bone [...] 2. Very colorful.