be no slouch
To be very hardworking, enthusiastic, and/or skillful. Tom might not be the friendliest coworker in the world, but he's no slouch when it comes to running the company's IT systems.
no slouch
A phrase used to describe someone very hardworking, enthusiastic, and/or skillful. Tom might not be the friendliest coworker in the world, but he's no slouch when it comes to running the company's IT systems.