Strange, eccentric, or unconventional in behavior; slightly off or peculiar.
Possibly from 'gook' (a term with uncertain origins and sometimes offensive connotations in historical use) or independently derived from 'goo' with the suffix '-y.' Regional and dialectal usage suggests British or Australian origins.
This word illustrates how slang can be murky—some sources suggest independence from offensive terms, while others trace it differently, showing how word origins can be legitimately difficult to pin down and sometimes require historians to be careful about assumptions.
Complete word intelligence in one call. Free tier — 50 lookups/day.