CONSERVATION, CONSERVATIONIST
NOUNS, PERSON
1973 — EAGLE FREAK a conservationist; a person who advocates the protection of wildlife → US sl., often disparaging
1973 — GREENIE a conservationist → colloq., orig. Aust.
2006 — DUCK-SQUEEZER a person with strong concerns about conservation and the environment, esp. rescuing oil-covered ducks → US sl. (Bk.)
Lexicophilia 