1. mad dog - Noun
2. mad dog - Adjective
A rabid dog.
(figuratively, by extension) Someone who is aggressive and fanatical; an aggressor who cannot be reasoned with.
Attributive form of mad dog
(rare) Alternative form of mad dog
mad-dog (comparative more mad-dog, superlative most mad-dog)
Fanatically or irrationally ferocious.
mad-dog
Chielo, the priestess of Agbala, called the converts the excrement of the clan, and the new faith was a mad dog that had come to eat it up. Chinua Achebe
You can be as mad as a mad dog at the way things went, you can curse the fates, but when it comes to the end, you have to let go. Eric Roth
When I wrote the song, I had the sea near Bombay in mind. We stayed at a hotel by the sea, and the fishermen come up at five in the morning and they were all chanting. And we went on the beach and we got chased by a mad dog - big as a donkey. Ray Davies
The mad dog bites its master. Portuguese Proverb
A mad dog bites anything except itself. African Proverb
A mad dog cannot live long. French Proverb