quick on the uptake

quick on the uptake / quick on the draw /quick on the trigger — хорошо соображает, быстро соображает

1.
quick to understand sth — хорошо соображает, сообразительный

Example 1: Pete gets the right answer before anyone else. He’s really quick on the trigger.

Example 2: Sarah will probably win the quiz game. She’s really quick on the draw.

2.
quick to respond to anything — быстро соображает, хорошая реакция; ≅ за словом в карман не лезет / не полезет

Example 1: Just because I’m not quick on the uptake, it doesn’t mean I’m stupid.

Example 2: Mary understands jokes before anyone else because she’s so quick on the uptake.

(NTC's)

see also
[quick study]
[quick off the mark]
[sharp as a tack]

opp
[slow on the draw]