I was looking up the word "chi-iking" from the passage I posted from Uncle Fred in the Springtime. There is this really cool site that has lots of information about Wodehouse books including definitions and explanations of some of the things he mentions that may not make sense to a modern or non-British audience.
Go there, it's neato.
By the way:
– heckling or possibly attracting attention with a clucking sound (slang, not often heard today)."