n. energy; drive and vitality. : Come on, you guys. Let's get some oomph behind it. Push!
n. sex appeal. (Euphemistic.) : She had a lot of oomph, but didn't wish to become a movie star.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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Word Origin & History
oomph
"sexual attractiveness," 1937, suggestive of the reaction of someone hit hard in the belly. Ann Sheridan (1939) was the original Hollywood oomph girl.