head-shrinker noun2 •One who shrinks heads, as previously done by some Amazon tribes. •(slang) A psychiatrist or psychotherapist; a shrink.DIESEL: In the opinion on this court, this child is depraved on account he ain't had a normal home. ACTION: Hey, I'm depraved on account I'm deprived. DIESEL: So take him to a headshrinker. — 1957 formshead-shrinkers