- " We are keyed up," she said. - "Man and Maid", Elinor Glyn.
- He sprang clear, and crouched for another spring, anywhere, tense and expectant, keyed for the onslaught of the unknown. - "The Best Psychic Stories", Various.
- They were all keyed up a week ago, and they've been sagging ever since. - "The Adventures of Sally", P. G. Wodehouse.