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.
- tobacco-stopper
- tobaccy
- Tobago
- Tobagonian
- -to-be
- to beat all ——s
- to beat the band
- to begin with
- to be going on with
- to be honest
- to be on (also at) the receiving end
- to be on the safe side
- to be sure
- Tobin tax
- Tobit
- to bits
- toboggan
- tobogganer
- tobogganing
- tobogganist
- tobramycin
- Tobruk
- toby
- Toby jug
- tobyman