v. To consult with or temporarily hire a person who has expertise in a particular subject.
1999
Mr. Axworthy is not shy about "borrowing brains" from Canadian universities and elsewhere for foreign-policy consultations.
1998
Kim has never claimed to be much of a student or intellectual, preferring his image as a fitness freak; he once said that a leader can borrow brains, but not good health.
1992 (earliest)
An early morning jogger, Kim often says: "We can borrow brains but not health." He stresses his leadership skills over his intellectual capacity.