Strictly speaking, meaninglessness is opposed to farce. You can’t have both utter meaninglessness and farce, because meaning is intrinsic to farce.

Comedy presupposes meaning, because comedy hinges on the absurd, but the absurd is a departure from meaning or a deviation from it. Something is absurd when it fails to be meaningful and fails to satisfy the rational in the broader context of rational meaning.

There is no laughter in the utterly meaningless. There cannot be silliness without an overarching context of seriousness.