مزحة

مَزْحَة \ joke: sth. said or done (on purpose or by mistake) that makes people laugh: He’s always telling jokes. They thought it was a great joke when their teacher fell in the river. \ مَزْحَة ثقيلة (مَلْعُوب)‏ \ practical joke: a trick by sb. who finds amusement in causing discomfort: As a practical joke, the children put a mouse in his bed. \ مَزْحَة صِبْيَانِيّة \ prank: a playful boyish trick.