Definition of carpenter pants in US English:

carpenter pants

plural noun

  • Loose-fitting pants with many pockets of various sizes and loops for tools at the tops or sides of the legs.

    • ‘All in all, he hasn't been getting much sleep recently, but in the midst of his colourfully-dressed assistants, Rosier, an unassuming figure in taupe carpenter trousers and cotton jumper, is totally alert and focused.’