dab hand
US /ˌdæb ˈhænd/
UK /ˌdæb ˈhænd/
1.
мастер, умелец, специалист
a person who is very skilled at a particular activity or craft
:
•
My grandmother is a real dab hand at baking cakes.
Моя бабушка — настоящая мастерица по выпечке тортов.
•
He's a dab hand with a paintbrush.
Он мастер с кистью.