Watch 42 Idiom Origins - mental_floss on YouTube (Ep. 29) in New Channel | Channify

A weekly show where knowledge junkies get their fix of trivia-tastic information. This week, John looks at the origins of 42 idioms such as, "once in a blue moon," "peeping Tom," and "silver lining." Mental Floss Video on Twitter: http://www.twitter.com/mf_video Select Images and Footage provided by Shutterstock: www.shutterstock.com ---- Website: http://www.mentalfloss.com Twitter: http://www.twitter.com/mental_floss Facebook: http://www.facebook.com/mentalflossmagazine Store: http://store.mentalfloss.com/ (enter promo code: "YoutubeFlossers" for 15% off!)