Conversation so far:
what is the drum sound after a joke called
A sting is a short sequence played by a drummer to punctuate a joke.
what kind of shows usually use a sting
A sting is often used as accompaniment during cabaret- and circus-style shows.
How is the sound of a sting written out
The sound of the sting is written ba dum tsh, ba-dum ching, ba dum tiss and occasionally ba dum tis.

Question: What is the British English version
Self-contained rewrite: What is the British English version for the sound of a sting