"to push slightly with the elbow," 1675, perhaps from Scand. (cf. Norw. nugge, nyggje "to jostle, rub;" Icelandic nugga "to rub, massage"). The noun is attested from 1836.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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