"aware, up-to-date," first recorded 1908 in "Saturday Evening Post," but said to be underworld slang, of unknown origin. Variously said to have been the name of "a fabulous detective who operated in Cincinnati" [Louis E. Jackson and C.R. Hellyer, "A Vocabulary of Criminal Slang," 1914] or a saloonkeeper in Chicago who "never quite understood what was going on ... (but) thought he did" ["American Speech," XVI, 154/1]. Taken up by jazz musicians by 1915; hepcat "addict of swing music" is from 1938. With the rise of hip (adj.) by the 1950s, the use of hep ironically became a clue that the speaker was unaware and not up-to-date.
cry of those leading pogroms or attacks on Jews in Europe, 1819 in reference to Jewish explusions by mobs in various German cities in that year (later called the hep-hep riots); perhaps originally the cry of a goatherd, or of a hunter urging on dogs, but popularly said at the time to be acronym of Latin Hierosolyma Est Perdita "Jerusalem is destroyed," which, as H.E.P., supposedly was emblazoned on the banners of medieval recruiters for the Crusades who drew mobs that subsequently turned on local Jewish populations. That such things happened is true enough, but in the absence of evidence the story about the supposed acronym looks like folk etymology.
双语例句
1. Results Human IL - 24 cDNA was successfully integrated into Hep - 2 cells and overexpressed.
结果IL-24基因成功地转导入Hep -2 细胞中并能高效表达.
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2. Con - The HEP thread has crit as the lowest effective healing stat available.
对于HEP方式暴击是有效治疗收益最低的.
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3. The adherence rate to MKN - 28 cells is much higher than that to Hep - 2 cells.
HP对MKN-28粘附率明显高于对Hep -2 细胞者.
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4. The new generation of hep Hitachi has energy - saving and environmentally friendly renewable energy to the limits.
而新一代日立hep已经将能量再生及节能环保发挥到极致.
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5. Results ESB inhibited the proliferation of Hep - G 2 cells in a time - and dose - dependent manner .
