Definition of "high-octane" []

• Having a high octane number and thus reducing knock and increasing efficiency in high-performance engines: high-octane gas. (adjective)
• Slang High-powered; dynamic: a high-octane sales manager; a high-octane marketing plan. (adjective)

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.

• "Indeed, from its outset, English has been about high-octane collisions with languages that its speakers never expected to encounter."
• "As we put them into high-octane situations, they need each other to survive."
• "FG: Barbara, we're really getting to the root of the matter here because your response ultimately raises a crucial question: what are the respective roles of parents and teachers in this modern, high-octane society?"