Write a Super Short Story to win an iPod!
"capacity for understanding," 1816, from up + take. Cf. obsolete verb uptake "to pick or take up," attested from c.1300.
uptake up·take (ŭp'tāk')n. The absorption by a tissue of a substance, such as a nutrient, and its permanent or temporary retention.
quick on the draw, slow on the draw