noun, plural jo·cos·i·ties. the state or quality of being jocose. joking or jesting.

Can a person be jocose?

Jocose is an adjective that's best used to describe someone who's in a good mood. Implying a sense of cheer and good humor, the word can characterize a person as someone who'd be fun to trade crazy stories with.

What is a Jocus?

In old English law. A game of hazard.