be quick on the uptake
US /bi kwɪk ɑn ðə ˈʌpˌteɪk/
UK /bi kwɪk ɑn ðə ˈʌpˌteɪk/
1.
to be quick to understand or learn something
:
•
She's always been quick on the uptake, so she'll grasp the new software easily.
•
You don't need to explain it twice; he's very quick on the uptake.