crocodile clip 
noun chiefly British
A sprung metal clip with long, serrated jaws, used attached to an electric cable for making a temporary connection to a battery or other component.There was a single lamp plugged into the generator, with a mesh over the bulb end and a crocodile clip on the other....
- If they are used for promotional reasons they will probably have attached some kind of accessories like crocodile clips, Dog clips, mobile phone holders.
- People are snooping on our lives, and you can too with cheap laptops, a few crocodile clips and a battered old van.
- bookmarklet
- book match
- book mate
- book matter
- book-mindedness
- book mite
- bookmobile
- book muslin
- book name
- book notice
- book number
- Book of Changes
- Book of Common Prayer
- book of hours
- Book of Proverbs
- Book of the Dead
- book of words
- book packet
- book page
- book piles
- bookplate
- book pocket
- lady's slipper
- lady's smock
- lady's thimble