mad dog
The term "mad dog" can refer to a rabid animal, an aggressively irrational person, or even a type of aircraft.
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Definition
B2Veterinary
(common)A dog infected with rabies, showing aggressive and erratic behavior.
Example
- The stray dog was foaming at the mouth like a mad dog.
B2Informal
(figurative, slang)A person who behaves in an extremely aggressive, uncontrollable, or irrational manner.
Example
- Stay away from him; he's a mad dog when he's angry.
C1Aviation
(technical)A nickname for the McDonnell Douglas MD-80 series aircraft.
Example
- The pilot flew a mad dog across the country.
Similar
Terms that have similar or relatively close meanings to "mad dog":
war dogdog mandog arounddog outblack dogdog meatred dogbig dogattack dogsalty dogmad cowraw dogwild man