From Longman Dictionary of Contemporary Englishhip flaskˈhip flask noun [countable] DFDa small container for alcoholic drinks, that fits into your pocket
Examples from the Corpus
hip flask• Biff had drawn up a stool nearby and was drinking from a hip flask enjoying the spectacle.• Very handy with a hip flask, but didn't look as if he could tell a Renoir from a Renault.• Fergus had brought a leather case with him; it held three of the silver cups and a big hip flask.• Bernice suddenly found she badly needed a drink, but her hip flask was empty.• She took her hip flask from her coveralls and emptied it in one long gulp.• But he filled his hip flask.• The comedian waited were he was, swigging from his hip flask.• The hip flask was in the glove compartment. 