Proper noun

1. The political philosophy associated with either of the US presidents George W. Bush and George H. W. Bush
   • 1999 October 7, New York Times,

     But to get to the essence of Bushism, it's helpful to go to another and more unusual book, All the Best, George Bush, a collection of letters written by George Bush the elder.

2. A form of words spoken by President George W. Bush that is unintentionally comical due to grammatical errors, malapropisms, etc.