n.
The period just before a significant or concluding moment such as a deadline, due date, or scheduled event: always waits until the last minute to do his holiday shopping.
last-minute last'-min'ute (lăst'mĭn'ĭt) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.