What it means
Someone who’s properly good at a task through sheer practice, not show-off genius. You’ll usually hear it in the pattern a dab hand at + whatever, from baking to bodging a bike. It’s a tidy compliment for the calm, capable type who just gets on with it and makes it look easy.
Usage examples
"Give the flatpack to Dad, he’s a dab hand at it. Ten minutes later it’s up, no leftover screws, and I’m still reading the instructions."
"She's a dab hand at fixing bikes, had mine sorted in ten minutes."
"After years of practice he's a real dab hand in the kitchen."
"Ask Priya to ice the cake, she’s a dab hand and won’t make a circus of it."
"I’m useless with curtains, but Nan’s a dab hand. She had the whole lot hemmed before I’d found the scissors."
Where it comes from
This one’s old British stock. Dab has meant a person who’s skilled or handy since at least the 17th century, and by the 18th century people were saying dab hand for someone especially adept. The hand bit leans into practical skill, the sort you build by doing, not by making a song and dance about it.
