Definitions by Carnivorous Motorcyclist

be a good mother fucker 

The famous catchphrase of the famous Aussie Legend, Isaac Butterfield. There really is no simpler way to explain it's meaning, simply put: "be a good mother fucker"

Mate: Hey Isaac, be a good mother fucker!
Isaac: You be a good mother fucker too!

be a good mother fucker by Carnivorous Motorcyclist March 18, 2019