1. people who are extremely concerned about environmental issues
Usage: informal; sometimes derogatory

Examples

• The protesters were dismissed as ecofreaks by the oil company executives.
• Some people call us ecofreaks, but we’re just trying to save the planet.
• The ecofreaks organized a massive cleanup of the polluted river.
• Critics labeled the environmental group as radical ecofreaks.
• The ecofreaks camped outside the factory to protest the toxic waste dumping.
• Local ecofreaks successfully blocked the construction of the new highway through the forest.