I have seen some interesting captchas over the years, and some of them intrigue me enough to find out why they are what they are - the history - the mythical meanings - all very interesting to me.

If you want to see all my other captcha research check out my master index http://bitbin.it/fbhOXm1W/

Here is another captcha word combo: plugged nickel

Definition, Education, and Pedia sites:
https://en.wikipedia.org/wiki/Plugged_Nickle
http://www.dictionary.com/browse/plugged-nickel
https://www.reference.com/hobbies-games/plug-nickel-8d423ba315426d91
https://en.wiktionary.org/wiki/not_worth_a_plug_nickel

Entertainment, Movies, and Music:
https://www.amazon.com/Complete-Live-At-Plugged-Nickel/dp/B00IRNYUCQ
https://itunes.apple.com/us/album/at-plugged-nickel-chicago/id833070903

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http://bitbin.it/fbhOXm1W/ Interesting Captchas master index - links to all my captcha pastes
http://bitbin.it/S4WFaJLS/ BitBin Throwback Index - interesting pastes I found here