(n.) State or character of a zany; buffoonery.

acting asininity banter battiness brainlessness business characterization clownishness crackpottedness crankiness craziness daffiness desipience eccentricity fatuity fatuousness folly foolery foolheadedness fooling foolishness frivolity frivolousness gag giddiness goofiness ham hammy acting harlequinade hoke hokum horseplay idiocy imbecility impersonation inanity ineptitude insanity lunacy madness mimesis mimicking mimicry miming mindlessness monkeyshines mummery niaiserie nugacity nuttiness overacting pantomiming patter performance performing personation playacting playing portrayal projection queerness representation sappiness screwiness senselessness shenanigans silliness slapstick stage business stage directions stage presence stunt stupidity taking a role thoughtlessness tomfoolery triflingness triviality wackiness weirdness witlessness zaniness zanyism