high-octane

[ hahy-ok-teyn ]
/ ˈhaɪˈɒk teɪn /

adjective

noting a gasoline with a relatively high octane number, characterized by high efficiency and freedom from knock.
Informal. forceful or intense; dynamic; high-powered: high-octane efforts to obliterate the competition.

Origin of high-octane

First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for high-octane

high-octane

adjective

(of petrol) having a high octane number
informal dynamic, forceful, or intensehigh-octane drive and efficiency
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012