Dictionary
tree hugger
noun
: someone who is regarded as foolish or annoying because of being too concerned about protecting trees, animals, and other parts of the natural world from pollution and other threats
Full Definition of TREE HUGGER
sometimes disparaging : environmentalist 2; especially : an advocate for the preservation of woodlands
See tree hugger defined for English-language learners
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First Known Use of TREE HUGGER
1965
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