sting.

About sting

A sting is a short drum sequence played by a drummer to punctuate a joke, especially an obvious one. A sting is often used as accompaniment during cabaret- and circus-style shows. Sometimes the sound of the sting is written ba dum tsh, ba-dum cha, ba-dum ching, ba dum tiss and occasionally ba dum tis. In British English, boom boom is used, for example in "Ha ha ha! Boom! Boom!", the catchphrase of the children's television character, Basil Brush. When a full orchestra flourish is to be indicated as a sting, it sometimes is written or spoken as, ta da! or ta da— as an interjection.