n a characteristic (habitual or relatively temporary) state of feeling
n a message whose ingenuity or verbal skill or incongruity has the power to evoke laughter
n (Middle Ages) one of the four fluids in the body whose balance was believed to determine your emotional and physical state
n the liquid parts of the body
n the quality of being funny
n the trait of appreciating (and being able to express) the humorous
v put into a good mood