Definition of humour

• a characteristic (habitual or relatively temporary) state of feeling; "whether he praised or cursed me depended on his temper at the time"; "he was in a bad humor"
• a message whose ingenuity or verbal skill or incongruity has the power to evoke laughter
• (Middle Ages) one of the four fluids in the body whose balance was believed to determine your emotional and physical state; "the humors are blood and phlegm and yellow and black bile"