Jim, love your clever song writing and putting the selected words into it, brilliant how you do that each month. ~Wowser~, is often used by people in conversation when they don't necessarily know what to say. Here is how it is explained on one site on the web.
"Wowzers" is just a slightly sillier, slightly more exaggerated version of "wow."
How Wowzers Is Used
Like the word wow, wowzers is a reactive exclamation. It can be used as a standalone word to react, or as part of a sentence that elaborates on the reaction.
People say it online or send it in a text message when they're reacting to something that seems surprising or shocking to them. When they don't know how to respond with words, saying wowzers is a good way to communicate their loss for words.
People also tend to say wowzers when they're excited about something and don't know how else to express it. They may use multiple exclamation marks after the wordy to convey the intensity of their excitement (or sense of shock and surprise) almost as if they want the people they're talking to online or via text to know that they're shouting.
Phill agree, Inspector Gadget did use that word, I had forgotten that lol. Anyway, hope you cover this song for Jim 
lol 
