Definition of "sure thing" []

• An outcome that is certain or assured; a certainty: "Any respectable contrarian is tempted to think a recession is a sure thing” ( Floyd Norris). (noun)
• Informal Of course; certainly: Sure thing, I'll be there! (interjection)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Lakers guard Michael Cooper made a highlight-reel block of an attempted layup, and again my sure thing raced up court with another opportunity to tie."
• "Quieting my Lakers roar with their Celtics championship apparel and notes on my desk about the recent past, people that were once in awe of my sure thing carved me up in a way that I never imagined."