That retard is always quick with the clapter at inappropriate times. I wonder if he understands that this is a professional presentation, not a third grade book report.

"dude, when that band came on stage, there was like 5 straight minutes of clapter!"

The theater was filled with the sound of clapter. Analogy: laughter is to laughing what clapter is to clapping.

there was a lot of clapter in the audience

Redundant rabid rabbits were startled with cacauphony created by the clapter of carefree children.