2.NounSomeone who objects to the building of an undesirable structure in their neighborhood, especially in public policy debate."politically correct green (as in vegetation) nimbies (may object to nuclear power plants, polluting factories, etc.); socially conservative brown (as in shirts) nimbies (may object to the building of jails, prisons, housing for ex-convicts, drinking or adult entertainment establishments); fiscally conservative green (as in money) nimbies (may object to the building of anything which may decrease preexisting property values)"