Bucking is a movement performed by an animal in which it lowers its head and raises its hindquarters into the air while kicking out with the hind legs. It is most commonly seen in herbivores such as equines, cattle, deer, goats, and sheep. Most research on this behavior has been directed towards horses and cattle.

What's bucked up mean?

1. bucked up - inspired with confidence; "felt bucked up by his success" encouraged.

What is Buck slang for?

The definition of a buck is slang for a dollar, or an adult male animal, often with antlers. An example of a buck is a dollar. An example of a buck is a male deer.