toolbox

noun4

1. •
   A storage case for tools.
2. •
   A set of pre-existing routines for use in writing new programs.
3. •
   (figurative) A set of skills or competences

   • Developing this chameleon-like skill could prove to be a very useful addition to your toolbox for winning people over – and getting ahead. — 2020
4. •
   (slang) Dumbass or idiot.

   • From the get go, one can immediately tell that this kid is a fucking toolbox. — 2007