Chiefly British Slang
1. Aggressive or violent behavior.
2. Irritation or exasperation: "Postponing new hospitals and roads causes far less aggro than sacking town hall or Whitehall workers" (Economist).
1. Aggressive or violent.
2. Daring and skillful, especially in a sport such as surfing.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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