The Word Spy

hello,
I've just started reading, The Return of the Word Spy. It is really good. If you haven't read it or the first book, The Word Spy, I recommend it.
Here is a puzzle I made:

Find the Answer:

Zebras Obviously Barking
To find the answer, read more by clicking on the link below1 (Don't worry it doesn't take you to a site filled with malicious software and viruses that take over your computer and renders it useless until the IT person comes and fixes it for you; really, it doesn't - hopefully it doesn't).

Answer: Zob!
Rhymes with mob and cob! Well a mob is a group of people and a cob is what poor people eat and poor also means worthless. Thus, zob is a worthless person! A riddle a day, keeps the Word Spy away! In a sentence:

The mob of zobs, were eating cobs while watching Bob the Builder building a Lobber.

Rhmyes, rhymes, rhymes, rhymes...
Anyway, did you like the Expansion pack? Oh, its still on very, light grey; oops! better change it!
There, thats better. Where were we? Oh yes, if you did, post it in the comments below.

Happy Reading, writing, singing, dancing and (insert verb here).
Jeffrey signing off...