Definition of "nut" []

• An indehiscent, hard-shelled, one-loculated, one-seeded fruit, such as an acorn or hazelnut. (noun)
• A seed borne within a fruit having a hard shell, as in the peanut, almond, or walnut. (noun)
• The kernel of any of these. (noun)
• Slang A crazy or eccentric person. (noun)
• Slang An enthusiast; a buff: a movie nut. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Legion thinks the nut is a hero and is true to the beliefs of the tea bag movement."
• "Where in the story did it say the nut is a teabagger anyway?"
• "He talked more about what I call nut control, instead of gun control."