Definitions by Van Brit
dab hand
To be good at something, to be an expert in a specific field, to have a way with something that makes that person better than your average Joe
Percy Thrower's a dab hand in the garden - his plants always flower more than anyone else's.
That Paul's a dab hand with PCs - he always manages to solve my problems.
That Paul's a dab hand with PCs - he always manages to solve my problems.