improvised tool

noun
UK /ˈɪmprəvaɪzd tuːl/
US /ˈɪmprəvaɪzd tuːl/

A tool you make quickly from things around you when you need one.

He used a rock as an improvised tool to crack open the nut.


OTHER MEANINGS

2. A temporary device created from available materials to solve an immediate problem.

The stranded hikers built an improvised tool from branches to reach the water.

3. A quickly assembled instrument used in place of a proper one.

She turned a spoon into an improvised tool for opening the paint can.

4. Any object repurposed on the spot to perform a task it was not designed for.

A credit card became an improvised tool for prying open the door.