"Sharper thinking" refers to having a more focused and intelligent way of processing information and making decisions. It means being more alert, clear-minded, and able to understand things quickly and accurately. Full definition
New in Town and The Comeback Kid had us rolling with Mulaney's sharp thoughts on daytime TV, Catholic mass and random street encounters, and his new material promises more reliable laughs. (relevantmagazine.com)
Heath also suggests that these findings can help those looking to tune up their brains before a big interview or other important occasion that calls for sharp thinking. (inc.com)